- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT02944682
Poluição do Ar Doméstico e Saúde: Um Estudo Multinacional de Intervenção de GLP (HAPIN)
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
Globalmente, quase 3 bilhões de pessoas dependem de combustíveis sólidos para cozinhar e se aquecer, a grande maioria em países de baixa e média renda (LMICs). A resultante poluição do ar doméstico (HAP) é o terceiro principal fator de risco na carga global de doenças em 2010, sendo responsável por cerca de 4,3 milhões de mortes anualmente, principalmente entre mulheres e crianças pequenas. Intervenções anteriores forneceram fogões mais limpos à base de biomassa, mas falharam em reduzir a exposição a níveis que produzissem melhorias significativas na saúde. Não houve testes de campo em larga escala com fogões a gás liquefeito de petróleo (GLP), provavelmente a intervenção escalável mais limpa.
O objetivo deste estudo é conduzir um estudo randomizado controlado de fogão a GLP e distribuição de combustível em 3.200 residências em quatro países de baixa e média renda (Índia, Guatemala, Peru e Ruanda) para fornecer evidências rigorosas sobre os potenciais benefícios à saúde ao longo da vida. Cada local de intervenção recrutará 800 mulheres grávidas (com idades entre 18 e 34 anos, 9 a <20 semanas de gestação) e designará aleatoriamente metade de suas famílias para receber fogões a GLP e um suprimento de GLP para 18 meses. Prevê-se que as famílias de controle continuem a cozinhar principalmente com combustíveis sólidos de biomassa e receberão uma compensação com base em um conjunto uniforme de princípios experimentais, personalizados para cada local com base em pesquisas formativas. A mãe será acompanhada junto com seu filho até a criança completar 1 ano de idade. Em domicílios com uma segunda mulher idosa não grávida (com idade entre 40 e <80 anos), os pesquisadores também a inscreverão e a acompanharão durante o período de acompanhamento de 18 meses para avaliar os desfechos cardiopulmonares, metabólicos e de câncer. Para otimizar o uso da intervenção, os pesquisadores implementarão estratégias de mudança de comportamento. Este estudo avaliará o uso do fogão, realizará avaliações repetidas de exposição pessoal a HAP (PM2,5, carbono negro, monóxido de carbono) e coletará manchas de sangue seco e amostras urinárias para análise de biomarcadores e armazenamento de bioamostras em todos os participantes em vários momentos. Os desfechos primários são baixo peso ao nascer, incidência de pneumonia grave, retardo de crescimento da criança e pressão arterial na mulher adulta. Os desfechos secundários incluem nascimento prematuro e desenvolvimento da criança, pressão sanguínea materna durante a gravidez e função endotelial, comprometimento respiratório, aterosclerose, metabólitos cancerígenos e qualidade de vida na mulher idosa.
Este estudo abordará os seguintes objetivos específicos: (1) usando uma análise de intenção de tratar, determinar o efeito de um fogão a GLP aleatório e intervenção de combustível na saúde em quatro populações de baixa e média renda usando um protocolo comum; (2) determinar as relações exposição-resposta para HAP e resultados de saúde; e (3) determinar as relações entre a intervenção do GLP e os biomarcadores direcionados e exploratórios de exposição/efeitos na saúde.
Este estudo fornecerá evidências, incluindo custos e estratégias de implementação, para informar políticas nacionais e globais sobre a expansão de fogões a GLP entre populações vulneráveis. Em última análise, isso facilitará discussões mais profundas em nível de política, bem como identificará requisitos para iniciar e manter intervenções de HAP globalmente.
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Departamento de Guatemala
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Guatemala City, Departamento de Guatemala, Guatemala, 01015
- Universidad del Valle de Guatemala
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Puno, Peru
- Puno Global Non-Communicable Disease Research Site, School of Medicine, Johns Hopkins University
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Kigali, Ruanda
- Rwanda Research Site, London School of Hygiene and Tropical Medicine, University of Liverpool
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Tamil Nadu
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Chennai, Tamil Nadu, Índia, 600116
- Sri Ramachandra Institute of Higher Education and Research
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Descrição
Critérios de Inclusão para Gestantes:
- Gravidez confirmada (teste de sangue ou urina hCG positivo)
- De 18 a <35 anos (via autorrelato)
- Usa fogão a biomassa predominantemente
- Mora na área de estudo
- 9 - <20 semanas de gestação confirmada por ultrassom
- Gravidez única (um feto)
- Feto viável com frequência cardíaca fetal normal (120-180 batimentos por minuto) no momento do ultrassom
- Gravidez continuada no momento da randomização confirmada por autorrelato
- Concorda em participar com consentimento informado
Critérios de exclusão para mulheres grávidas:
- Atualmente fuma cigarros ou outros produtos derivados do tabaco
- Planeja se mudar permanentemente para fora da área de estudo nos próximos 12 meses
- Usa fogão a GLP predominantemente, ou provavelmente usará GLP predominantemente em um futuro próximo
Critérios de inclusão para mulheres idosas no mesmo domicílio:
- De 40 a <80 anos (via autorrelato)
Critérios de exclusão para mulher idosa no mesmo domicílio:
- Atualmente fuma cigarros ou outros produtos derivados do tabaco
- Grávida (por autorrelato)
- Planeja sair de sua casa atual nos próximos 12 meses
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Prevenção
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
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Experimental: Fogão a gás liquefeito de petróleo
Os participantes randomizados para o braço experimental receberão um fogão a gás liquefeito de petróleo (GLP) e suprimento de GLP por 18 meses.
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The intervention consists of a high-quality locally available liquefied petroleum gas (LPG) stove having at least two burners, a continuous supply of LPG fuel for 18 months, and the promotion of stove use on an exclusive basis for cooking.
The intervention will be provided free of charge to all intervention households upon enrollment.
On a weekly basis, study staff will examine stove condition, perform any necessary repairs, and measure and record weight of LPG tanks in order to anticipate need for refills.
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Sem intervenção: Ao controle
Os participantes do grupo de controle não receberão fogão a gás liquefeito de petróleo (GLP) e continuarão usando métodos tradicionais de cozimento (fogo aberto ou fogão tradicional) ou o método de cozimento de sua escolha.
As famílias de controle receberão uma compensação com base em um conjunto uniforme de princípios experimentais, personalizados para cada local com base em pesquisas formativas.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Birth weight
Prazo: Within 24 hours of birth (up to 5 months post-randomization of mother)
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Birth weight is assessed by a trained nurse or health worker within 24 hours of birth.
Infants are weighed naked or in a pre-weighed blanket.
Weight is measured to the nearest 10 g using a digital electronic scale, if performed by the study field staff; otherwise, hospital medical records are used.
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Within 24 hours of birth (up to 5 months post-randomization of mother)
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Incidence of HAPIN Defined Severe Pneumonia
Prazo: Up to 12 months after birth
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The number of times a child has severe pneumonia over their period of follow-up during the first year of life is assessed.
For this study pneumonia criteria are adapted from the WHO classification of childhood pneumonia (2014) and there are 3 algorithms for case criteria: 1) the presence of cough and/or difficult breathing and at least 1 general danger sign plus evidence of pneumonia on lung imaging (i.e., lung ultrasound or chest x-ray), or 2) the presence of cough and/or difficult breathing and hypoxemia (measured either via pulse oximetry (SpO2), or observing a child requiring advanced respiratory support (i.e., intubation and mechanical ventilation, non-invasive ventilation with continuous or bi-level positive airway pressure support, or high-flow nasal cannula oxygen), or 3) children who die prior to evaluation but their death is attributed to pneumonia by verbal autopsy.
Cases of pneumonia are recorded children present to HAPIN health facilities with respiratory symptoms.
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Up to 12 months after birth
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Length-for-age z-score 2 standard deviations below the standard
Prazo: 12 months after birth
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The primary outcome measured is stunting at one year of age, defined as a length-for-age z-score (LAZ) that is 2 standard deviations below the median of the growth standard.
Infant length is assessed at birth and quarterly thereafter, until the child is 12 months old.
Z-scores are calculated using the 2006 World Health Organization (WHO) Multi-Growth Reference Standard (MGRS).
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12 months after birth
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Systolic Blood Pressure Among Older Adult Women
Prazo: Baseline, 3, 6, 9, 12, and 18 months post-randomization
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Systolic blood pressure is assessed in the older adult women in the intervention and control arms using automatic sphygmomanometers (Omron HEM-907XL; Osaka, Japan).
The study team uses the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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Baseline, 3, 6, 9, 12, and 18 months post-randomization
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Child Linear Growth During Extended Follow-up
Prazo: 24, 36, 48 and 60 months of age
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Linear growth of children is assessed in centimeters of height.
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24, 36, 48 and 60 months of age
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Caregiver Reported Early Childhood Development Instrument (CREDI) Score During Extended Follow-up
Prazo: 24 months of age
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Child development is assessed with the Caregiver Reported Early Childhood Development Instrument (CREDI).
The CREDI is a population-level measure of early childhood development (ECD) for children from 0-3 years of age.
The CREDI assesses 4 domains of child development: 1) motor (fine and gross motor), 2) language (expressive and receptive language), 3) cognitive (executive function, problem solving and reasoning, and pre-academic knowledge), and 4) social-emotional (emotional and behavioral self-regulation, emotional knowledge, and social competence).
The CREDI long form consists of up to 108 items and the number of questions answered depends on the age of the child.
Responses of "yes" are coded as 1 and "no" is coded as 0; certain items are reverse coded.
Both domain-specific and overall z-scores are calculated.
Total raw scores increase by age (with developmental progression), and higher scores indicate increased development.
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24 months of age
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Malawi Developmental Assessment Tool (MDAT) Score
Prazo: 36, 48 and 60 months of age
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The MDAT measures gross motor (39 items), fine motor (42 items), language/cognition (40 items) and social skills (36 items).
Originally developed and validated in rural Malawi, it has now been used in over 25 countries with more than 8,000 children as both a clinical and research tool.
The MDAT is a continuous test with start and stop rules.
Most items are administered directly to the child and items that are not easily observed (e.g., child speaks in full sentences; child understands sharing with others; child can dress self) are administered by parent report.
Children receive either a pass or fail for each item, and summed pass scores can produce a composite score as well as domain-specific scores.
Total scores range from 0 to 157 where higher scores indicate greater neurodevelopment.
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36, 48 and 60 months of age
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
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Nascimento prematuro
Prazo: Até 5 meses (dentro de 24 horas após o nascimento, 3-5 meses após a randomização)
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O nascimento prematuro é definido como o parto de um bebê vivo antes de 37 semanas completas de gestação.
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Até 5 meses (dentro de 24 horas após o nascimento, 3-5 meses após a randomização)
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Hospitalização por doença respiratória
Prazo: Até 12 meses após o nascimento
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Incidência cumulativa de hospitalizações por doença respiratória durante o primeiro ano de vida.
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Até 12 meses após o nascimento
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Pneumonia não grave da OMS
Prazo: Até 12 meses após o nascimento
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Incidência cumulativa de pneumonia não grave da OMS (definição de 2014 e definição de 2013) durante o primeiro ano de vida.
Casos de pneumonia são registrados sempre que crianças chegam às unidades de saúde do HAPIN com sintomas respiratórios.
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Até 12 meses após o nascimento
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OMS Pneumonia Grave
Prazo: Até 12 meses após o nascimento
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Incidência cumulativa de pneumonia não grave da OMS (definição de 2014 e definição de 2013) durante o primeiro ano de vida.
Casos de pneumonia são registrados sempre que crianças chegam às unidades de saúde do HAPIN com sintomas respiratórios.
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Até 12 meses após o nascimento
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Livro de bolso da OMS Pneumonia não grave
Prazo: Até 12 meses após o nascimento
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Incidência cumulativa de pneumonia não grave da OMS durante o primeiro ano de vida, conforme definido na segunda edição do "Livro de bolso de cuidados hospitalares para crianças" (2013).
Casos de pneumonia são registrados sempre que crianças chegam às unidades de saúde do HAPIN com sintomas respiratórios.
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Até 12 meses após o nascimento
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Livro de Bolso da OMS Pneumonia Grave
Prazo: Até 12 meses após o nascimento
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Incidência cumulativa de pneumonia grave da OMS durante o primeiro ano de vida, conforme definido na segunda edição do "Livro de bolso de cuidados hospitalares para crianças" (2013).
Casos de pneumonia são registrados sempre que crianças chegam às unidades de saúde do HAPIN com sintomas respiratórios.
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Até 12 meses após o nascimento
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Pneumonia Hipoxêmica
Prazo: Até 12 meses após o nascimento
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Incidência cumulativa de pneumonia hipoxêmica durante o primeiro ano de vida.
Casos de pneumonia são registrados sempre que crianças chegam às unidades de saúde do HAPIN com sintomas respiratórios.
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Até 12 meses após o nascimento
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Pneumonia por ultrassom ou radiografia
Prazo: Até 12 meses após o nascimento
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Incidência cumulativa de ultrassonografia pulmonar ou pneumonia na radiografia de tórax durante o primeiro ano de vida.
Casos de pneumonia são registrados sempre que crianças chegam às unidades de saúde do HAPIN com sintomas respiratórios.
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Até 12 meses após o nascimento
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Gestational Systolic Blood Pressure
Prazo: Baseline (9-20 weeks gestation), 24-28 and 32-36 weeks gestation
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Blood pressure is assessed in the pregnant women in the intervention and control arms using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team will use the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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Baseline (9-20 weeks gestation), 24-28 and 32-36 weeks gestation
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Gestational Diastolic Blood Pressure
Prazo: Baseline (9-20 weeks gestation), 24-28 and 32-36 weeks gestation
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Blood pressure is assessed in the pregnant women in the intervention and control arms using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team will use the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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Baseline (9-20 weeks gestation), 24-28 and 32-36 weeks gestation
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Systolic Blood Pressure in New Mothers
Prazo: 9, 12, and 18 months post-randomization
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Blood pressure is assessed in the new mothers in the intervention and control arms using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team will use the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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9, 12, and 18 months post-randomization
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Diastolic Blood Pressure in New Mothers
Prazo: 9, 12, and 18 months post-randomization
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Blood pressure is assessed in the new mothers in the intervention and control arms using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team will use the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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9, 12, and 18 months post-randomization
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Diastolic Blood Pressure Among Older Adult Women
Prazo: Baseline, 3, 6, 12 and 18 months post-randomization
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Diastolic blood pressure is assessed in the older adult women in the intervention and control arms using automatic sphygmomanometers (Omron HEM-907XL; Osaka, Japan).
The study team uses the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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Baseline, 3, 6, 12 and 18 months post-randomization
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Mean arterial pressure
Prazo: Baseline, 3, 6, 12 and 18 months post-randomization
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Mean arterial pressure is assessed in the older adult women in the intervention and control arms using automatic sphygmomanometers (Omron HEM-907XL; Osaka, Japan).
Mean arterial pressure is calculated as DBP+(SBP-DBP)/3, where SBP=systolic blood pressure and DBP=diastolic blood pressure.
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Baseline, 3, 6, 12 and 18 months post-randomization
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Pulse pressure
Prazo: Baseline, 3, 6, 12 and 18 months post-randomization
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Pulse pressure is assessed in the older adult women in the intervention and control arms using automatic sphygmomanometers (Omron HEM-907XL; Osaka, Japan).
pressure.
Pulse pressure is the difference between systolic blood pressure and diastolic blood pressure.
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Baseline, 3, 6, 12 and 18 months post-randomization
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Fetal Growth
Prazo: Baseline, Gestation Week 24-28 and Gestation Week 32-36
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Pregnant women have ultrasounds at Baseline and during gestation weeks 24-28 and gestation weeks 32-36 to measure fetal growth outcomes.
Specifically, the researchers evaluate head circumference (HC), abdominal circumference (AC), femur length (FL) and estimated fetal weight (EFW) during gestation.
The researchers are comparing (i) z-scores of individual fetal growth measurements (HC, AC, FL, EFW) at the 2 growth ultrasound visits between intervention and control participants (separately at 24-28 weeks gestation and 32-36 weeks gestation); (ii) differences in proportions of the 2.5th percentiles of each of these measurements evaluated separately at 24-28 and 32-36 weeks gestation; (iii) Z-score trajectories of HC, AC, FL and EFW as a function of gestational age and intervention; and (iv) prevalence of small for gestational age (SGA) during the fetal period through birth as measured by WHO INTERGROWTH 21st standards.
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Baseline, Gestation Week 24-28 and Gestation Week 32-36
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Gestational age at birth
Prazo: Up to 5 months (within 24 hours of birth, 3-5 months post randomization)
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Gestational age at birth is measured in weeks, as continuous outcome, among all live births.
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Up to 5 months (within 24 hours of birth, 3-5 months post randomization)
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Brachial artery reactivity testing (BART)
Prazo: Baseline, 18 months post-randomization
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Brachial artery reactivity testing (BART) measures endothelial function via flow-mediated dilatation to reactive hyperemia following the release of arm blood-flow occlusion.
In this test, baseline artery diameter is measured, then a blood pressure cuff is inflated to induce distal arm ischemia for 5 minutes and after releasing the pressure, the post-occlusion brachial artery diameter is measured.
The ratio of post- to pre-occlusion artery diameter represents endothelial function where lower values indicate worse endothelial function.
(Peru only)
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Baseline, 18 months post-randomization
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Carotid intima-media thickness (CIMT) Among Older Adult Women
Prazo: Baseline, 18 months post-randomization
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The carotid intima-media thickness test (CIMT) is used to determine the extent of carotid atherosclerotic vascular disease.
The test measures the thickness of the inner two layers of the carotid artery and can detect plaque build up prior to physical symptoms being experienced.
The carotid ultrasound will be performed with a portable ultrasound by trained sonographers.
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Baseline, 18 months post-randomization
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St. George Respiratory Questionnaire (SGRQ) Score
Prazo: Baseline, 18 months post-randomization
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Adult respiratory health and well-being is assessed with the St. George Respiratory Questionnaire (SGRQ).
The SGRQ measures impaired health and perceived well-being among individuals with chronic airway disease.
The SGRQ has sections assessing symptoms, activities that cause breathlessness or are limited because of breathlessness, and the impacts of respiratory problems on employment, sense of control of health, panic, stigmatization, medication use, side effects of therapies, expectations for health and disturbances of daily life.
The questionnaire includes multiple choice, true/false and open-ended questions.
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Baseline, 18 months post-randomization
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Short Form 36 Survey (SF-36) Score Among Older Adult Women
Prazo: Baseline, 18 months post-randomization
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The Short Form 36 survey (SF-36) is a standardized, preference-based 36 item questionnaire evaluating quality of life.
The survey has 8 sections (vitality, physical functioning, bodily pain, general health perceptions, physical role functioning, emotional role functioning, social role functioning, and mental health).
Possible scores range from 0 (lowest quality of life) to 100 (highest quality of life).
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Baseline, 18 months post-randomization
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Weight
Prazo: 24, 36, 48 and 60 months of age of the child
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Weight is measured in kilograms (kg).
Weight in new mothers in Rwanda is measured when the child is 24 months old.
For new mothers in Guatemala weight is measured when the child is 24 and 36 months old.
In older adult women, weight is measured when the child is 24 months old.
Weight is measured in children at 24, 36, 48 and 60 months of age.
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24, 36, 48 and 60 months of age of the child
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Body Mass Index (BMI)
Prazo: 24, 36, 48 and 60 months of age of the child
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BMI is calculated as weight in kilograms divided by height in meters (m) squared (kg/m^2).
BMI in new mothers in Rwanda is calculated from height and weight measurements obtained when the child is 24 months old.
For new mothers in Guatemala BMI is calculated from height and weight measurements obtained when the child is 24 and 36 months old.
In older adult women, BMI is calculated from height and weight measurements obtained when the child is 24 months old.
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24, 36, 48 and 60 months of age of the child
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Height
Prazo: 24 and 36 months of age of the child
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Height is measured in meters.
Height in new mothers in Rwanda is measured when the child is 24 months old.
For new mothers in Guatemala height is measured when the child is 24 and 36 months old.
In older adult women, height is measured when the child is 24-months old.
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24 and 36 months of age of the child
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Child Blood Pressure
Prazo: 24 (Rwanda only) and 60 months of age
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Blood pressure is assessed in the children using automatic sphygmomanometers (OMRON HEM-907XL; Osaka, Japan).
The study team uses the procedures adapted from previously validated methods and cardiovascular outcome studies, following recommendations for the American Heart Association and the European Society of Hypertension.
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24 (Rwanda only) and 60 months of age
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Child Linear Growth
Prazo: Birth (3-5 months post-randomization), and 3, 6, 9, and 12 months of age
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Linear growth of children is assessed in centimeters at birth and quarterly thereafter, until the child is 12 months old.
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Birth (3-5 months post-randomization), and 3, 6, 9, and 12 months of age
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Caregiver Reported Early Childhood Development Instrument (CREDI) Score
Prazo: 3 and 12 months of age
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Child development is assessed with the Caregiver Reported Early Childhood Development Instrument (CREDI).
The CREDI is a population-level measure of early childhood development (ECD) for children from 0-3 years of age.
The CREDI assesses 4 domains of child development: 1) motor (fine and gross motor), 2) language (expressive and receptive language), 3) cognitive (executive function, problem solving and reasoning, and pre-academic knowledge), and 4) social-emotional (emotional and behavioral self-regulation, emotional knowledge, and social competence).
The CREDI long form consists of up to 108 items and the number of questions answered depends on the age of the child.
Responses of "yes" are coded as 1 and "no" is coded as 0; certain items are reverse coded.
Both domain-specific and overall z-scores are calculated.
Total raw scores increase by age (with developmental progression), and higher scores indicate increased development.
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3 and 12 months of age
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Outras medidas de resultado
Medida de resultado |
Descrição da medida |
Prazo |
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Aborto espontâneo
Prazo: Linha de base até 20 semanas de gestação
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Morte fetal antes de 19 semanas e 6 dias.
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Linha de base até 20 semanas de gestação
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Nascimento prematuro precoce
Prazo: Aniversário
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Nascidos com menos de 34 semanas completaram a gestação, entre todos os nascidos vivos.
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Aniversário
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Natimorto
Prazo: Até o nascimento
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Quaisquer mortes fetais que ocorram após 20 semanas de gestação OU indicadas no formulário de Evento Adverso Grave OU no formulário de Histórico Médico da Mulher Grávida OU no formulário de autópsia verbal.
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Até o nascimento
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Morte neonatal
Prazo: Nascimento até 28 dias
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Morte entre o nascimento e 28 dias.
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Nascimento até 28 dias
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Função Pulmonar Infantil
Prazo: 36, 48 e 60 meses de idade
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As medições da função pulmonar serão feitas pela técnica de oscilação forçada (FOT) com o aparelho Tremoflo C-100 com bocais descartáveis.
FOT é uma técnica que pode identificar alterações precoces nas vias aéreas.
O dispositivo FOT mede a relação entre as ondas de pressão aplicadas externamente e o fluxo de ar resultante para medir a impedância respiratória.
Os valores produzidos em altas frequências correspondem às vias aéreas proximais e grandes, e os valores produzidos em baixas frequências correspondem às vias aéreas distais e pequenas.
Esta medição será realizada em crianças na Guatemala.
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36, 48 e 60 meses de idade
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Mudança nos biomarcadores urinários
Prazo: Linha de base, 3, 6, 9, 12 e 18 meses pós-randomização e 24 meses de idade da criança
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Serão medidos biomarcadores de exposição múltipla: 3-OH Cotinina, 4-(metilnitrosamino)-1-(3-piridil)-1-butanol (NNAL), levoglucosano, 8OH-desoxiguanosina (8OHdG) e metabólitos de produtos químicos orgânicos voláteis (VOC). .
Os biomarcadores de exposição (especialmente para crianças cuja urina pode ser limitada) serão priorizados da seguinte forma: biomarcadores de hidrocarbonetos aromáticos policíclicos (PAH), levoglucosano, biomarcadores de produtos químicos orgânicos voláteis (COV), metais pesados e biomarcadores relacionados ao tabaco.
Os biomarcadores urinários serão medidos em mulheres grávidas no início do estudo, 24-28 semanas de gestação e 32-36 semanas de gestação, e em novas mães quando a criança tiver 24 meses de idade.
Os biomarcadores serão medidos em mulheres idosas no início do estudo, 3, 6, 9, 12 e 18 meses após a randomização.
Os biomarcadores serão medidos em crianças aos 3, 6, 12 e 24 meses de idade.
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Linha de base, 3, 6, 9, 12 e 18 meses pós-randomização e 24 meses de idade da criança
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Alteração nos biomarcadores de manchas de sangue seco (DBS)
Prazo: Linha de base, 3, 6, 9, 12 e 18 meses após a randomização e aos 24 meses de idade da criança
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Os principais biomarcadores a serem medidos nas manchas de sangue seco são: marcadores de inflamação, marcadores endoteliais de doenças cardiovasculares, marcadores de estresse oxidativo, Hb, HbA1C, anticorpos antígenos associados a tumores, citocromo P450, antígeno associado a tumores p53 (TAA), lipídios, metabolômica, MiRNA, metais pesados.
Os biomarcadores DBS serão medidos em mulheres grávidas no início do estudo, 24-28 semanas de gestação e 32-36 semanas de gestação, e em novas mães quando a criança tiver 24 meses de idade.
Os biomarcadores DBS serão medidos em mulheres adultas mais velhas no início do estudo, 3, 6, 9, 12 e 18 meses após a randomização.
Os biomarcadores DBS serão medidos em crianças aos 3, 6, 12 e 24 meses de idade.
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Linha de base, 3, 6, 9, 12 e 18 meses após a randomização e aos 24 meses de idade da criança
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Escala de Estresse Percebido Materno (PSS)
Prazo: 9 a 18 meses após a randomização (3 a 12 meses de idade da criança)
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A Escala de Estresse Percebido (PPS) de Cohen de 10 itens avalia a maneira como um indivíduo avalia seus eventos de vida como estressantes (por exemplo, "No último mês, com que frequência você sentiu que as dificuldades estavam se acumulando tanto que você não conseguia superá-las?" ) (Cohen, 1983).
As respostas do nível Likert variaram de 0 (nunca) a 4 (muito frequentemente), o que significa que uma pontuação alta no PPS resultaria em um alto nível de estresse percebido.
Um PPS em espanhol criado e testado e considerado válido e confiável (Vallijo et al., 2018).
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9 a 18 meses após a randomização (3 a 12 meses de idade da criança)
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Parto prematuro
Prazo: Aniversário
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Incluindo nascimento prematuro e natimorto.
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Aniversário
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Insegurança alimentar doméstica
Prazo: Linha de base, 18 meses após a randomização
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A insegurança alimentar das famílias será medida através da Escala de Experiência de Insegurança Alimentar (FIES), desenvolvida e validada pela Organização para a Alimentação e Agricultura (FAO).
O módulo FIES inclui oito questões, cada uma com opções de resposta sim/não, sobre o acesso do domicílio à alimentação adequada, e tem como objetivo medir três domínios da insegurança alimentar: incerteza/ansiedade, quantidade e qualidade dos alimentos.
Cada questão assume valores de 0/1, que são somados para uma pontuação total possível de 0-8.
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Linha de base, 18 meses após a randomização
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Diversidade alimentar - mulheres
Prazo: Linha de base até 18 meses após a randomização
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A diversidade alimentar das mulheres será medida por meio do questionário Mínimo de Diversidade Dietética - Mulheres (MDD-W) da FAO e FHI 360, que utiliza um formato de recordatório aberto para coletar dados sobre alimentos e bebidas consumidos pelo entrevistado durante o dia e a noite anteriores. .
As respostas serão categorizadas em dez grupos de alimentos e as mulheres que relatarem consumir cinco ou mais dos dez grupos de alimentos serão categorizadas como atingindo diversidade alimentar mínima.
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Linha de base até 18 meses após a randomização
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Concentração de hemoglobina (Hb)/anemia - mulheres
Prazo: Linha de base, 3 e 5 meses após a randomização
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A Hb será medida a partir de uma única gota de sangue capilar obtida por picada no dedo, usando o dispositivo no local de atendimento HemoCue® Hb 201system (HemoCue® AB)
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Linha de base, 3 e 5 meses após a randomização
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Concentração de hemoglobina (Hb)/anemia - lactentes
Prazo: 12 e 18 meses pós-randomização (6 e 12 meses de idade)
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A Hb será medida a partir de uma única gota de sangue capilar obtida por picada no dedo, usando o dispositivo no local de atendimento HemoCue® Hb 201system (HemoCue® AB)
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12 e 18 meses pós-randomização (6 e 12 meses de idade)
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Change in fine particulate matter (PM2.5) exposure
Prazo: Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Personal monitoring equipment is used to assess exposure to fine particulate matter (PM2.5) over a 24-hour period in intervention and control participants (pregnant women, older adult women, and children).
Exposure for pregnant women is measured at baseline, 24-28 weeks gestation, 32-36 weeks gestation, and in Guatemala and India, when the child is 24 months old.
Exposure for the child is measured at 3, 6, 12, 24, 36, 48 and 60 months of age.
Exposure for the older adult women is measured at baseline, 3, 6, 12 and 18 months post-randomization, and in Guatemala and India, when the child is 24 months old.
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Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Change in Carbon monoxide (CO) exposure
Prazo: Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Personal monitoring equipment is used to assess exposure to carbon monoxide (CO) over a 24-hour period in intervention and control participants (pregnant women, older adult women, and children).
Exposure for pregnant women is measured at baseline, 24-28 weeks gestation, 32-36 weeks gestation, and in Guatemala and India, when the child is 24 months old.
Exposure for the child is measured at 3, 6, 12, 24, 36, 48 and 60 months of age.
Exposure for the older adult women is measured at baseline, 3, 6, 12 and 18 months post-randomization, and in Guatemala and India, when the child is 24 months old.
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Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Change in Black carbon (BC) exposure
Prazo: Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Personal monitoring equipment is used to assess exposure to black carbon (BC) over a 24-hour period in intervention and control participants (pregnant women, older adult women, and children).
Exposure for pregnant women is measured at baseline, 24-28 weeks gestation, 32-36 weeks gestation, and in Guatemala and India, when the child is 24 months old.
Exposure for the child is measured at 3, 6, 12, 24, 36, 48 and 60 months of age.
Exposure for the older adult women is measured at baseline, 3, 6, 12 and 18 months post-randomization, and in Guatemala and India, when the child is 24 months old.
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Baseline, 3, 6, 9, 12 and 18 months post-randomization, and at 24, 36, 48, 60 months of age of the child
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Messenger Ribonucleic Acid (mRNA) Expression and microRNA in Older Adult Women
Prazo: Baseline, 18 months post-randomization
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Two buccal cell scrapes will be collected by gently scraping the buccal mucosa on both sides of the mouth with a small plastic collection spoon.
Nasal turbinate brush samples can be collected using a soft cytobrush on each turbinate.
Collection is gentle and causes no discomfort to study participants.
Both samples will be processed in the laboratory according to procedures detailed in the protocol.
This will occur in the older adult women in an NCI substudy.
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Baseline, 18 months post-randomization
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Microbiome Operational Taxonomic Units (OTUs) in Older Adult Women
Prazo: Baseline, 18 months post-randomization
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For the oral rinse, participants will vigorously rinse their mouth and the rinsates are collected in a centrifuge tube.
The tube is centrifuged and the pellet and supernatant are removed to separate cryovials, labeled and frozen.
This will occur in the older adult women in an NCI substudy.
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Baseline, 18 months post-randomization
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Epigenetics (DNA methylation) in Older Adult Women
Prazo: Baseline, 18 months post-randomization
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Two buccal cell scrapes will be collected by gently scraping the buccal mucosa on both sides of the mouth with a small plastic collection spoon.
A 5-mL venous blood sample will be collected in an ethylenediaminetetraacetic acid (EDTA) vacutainer tube by standard clinical venipuncture of a cubital vein.
Both samples will be transported and processed in the laboratory according to procedures detailed in the protocol.
This will occur in the older adult women in an NCI substudy.
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Baseline, 18 months post-randomization
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Metabolomics and MicroRNA in Older Adult Women
Prazo: Baseline, 18 months post-randomization
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A 5-mL venous blood sample will be collected in an EDTA vacutainer tube by standard clinical venipuncture of a cubital vein.
The sample will be transported and processed in the laboratory according to procedures detailed in the protocol.
This will occur in the older adult women in an NCI substudy.
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Baseline, 18 months post-randomization
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Dietary diversity - infants
Prazo: 9, 12, 15 and 18 months post-randomization (3, 6, 9, and 12 months of age)
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Minimum dietary diversity for children will be measured using the World Health Organization (WHO) infant and young child feeding questionnaire.
The questionnaire uses a combination of open and closed recall and asks caregivers to report on foods and beverages consumed by the infant or young child during the previous day and night.
Responses will be categorized into eight food groups and infants who consumed five or more out of ten eight food groups will be categorized as achieving minimum dietary diversity.
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9, 12, 15 and 18 months post-randomization (3, 6, 9, and 12 months of age)
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Carotid intima-media thickness (CIMT) Among Older Adult Women During Extended Follow-up
Prazo: 24 months of age of the child
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The carotid intima-media thickness test (CIMT) is used to determine the extent of carotid atherosclerotic vascular disease.
The test measures the thickness of the inner two layers of the carotid artery and can detect plaque build up prior to physical symptoms being experienced.
The carotid ultrasound will be performed with a portable ultrasound by trained sonographers.
This outcome is only assessed in Guatemala during the extended follow-up period (after the birth of the household child).
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24 months of age of the child
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Reported Diarrhea in Children
Prazo: Up to 12 months after birth
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Reported diarrhea will be extracted from the Monthly Child Health Status Visit case report form.
Each month, the child's caretaker will be administered a survey to obtain information on whether the child under 1 year of age (the HAPIN study index child) or any other child in the home under 5 has experienced WHO-defined diarrhea (defined as three or more loose stools that can take the shape of a container within a 24-hour period) in the past 7 days.
Persistent diarrhea will be defined as 14 or more continuous days of diarrhea.
The presence of blood in the stool will also be noted as an indicator of severity.
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Up to 12 months after birth
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Thomas Clasen, PhD, Emory University
- Investigador principal: Jennifer Peel, PhD, Colorado State University
- Investigador principal: William Checkley, MD PhD, Johns Hopkins School of Medicine
Publicações e links úteis
Publicações Gerais
- Kearns KA, Naeher LP, McCracken JP, Boyd Barr D, Saikawa E, Hengstermann M, Mollinedo E, Panuwet P, Yakimavets V, Lee GE, Thompson LM. Estimating personal exposures to household air pollution and plastic garbage burning among adolescent girls in Jalapa, Guatemala. Chemosphere. 2024 Jan;348:140705. doi: 10.1016/j.chemosphere.2023.140705. Epub 2023 Nov 17.
- Younger A, Ye W, Alkon A, Harknett K, Kirby MA, Elon L, Lovvorn AE, Wang J, Diaz-Artiga A, McCracken JP, Castanaza Gonzalez A, Alarcon LM, Mukeshimana A, Rosa G, Chiang M, Balakrishnan K, Garg SS, Pillarisetti A, Piedrahita R, Johnson MA, Craik R, Papageorghiou AT, Toenjes A, Williams KN, Underhill LJ, Hartinger SM, Nicolaou L, Chang HH, Naeher LP, Rosenthal J, Checkley W, Peel JL, Clasen TF, Thompson LM; Household Air Pollution Intervention Network (HAPIN) Investigators. Effects of a liquefied petroleum gas stove intervention on stillbirth, congenital anomalies and neonatal mortality: A multi-country household air pollution intervention network trial. Environ Pollut. 2024 Mar 15;345:123414. doi: 10.1016/j.envpol.2024.123414. Epub 2024 Jan 27.
- Pillarisetti A, Ye W, Balakrishnan K, Rosa G, Diaz-Artiga A, Underhill LJ, Steenland K, Peel JL, Kirby MA, McCracken J, Waller L, Chang H, Wang J, Dusabimana E, Ndagijimana F, Sambandam S, Mukhopadhyay K, Kearns KA, Campbell D, Kremer J, Rosenthal J, Ghosh A, Clark M, Checkley W, Clasen T, Naeher L, Piedrahita R, Johnson M. Post-birth exposure contrasts for children during the Household Air Pollution Intervention Network randomized controlled trial. medRxiv [Preprint]. 2023 Jul 6:2023.07.04.23292226. doi: 10.1101/2023.07.04.23292226.
- Simkovich SM, Hossen S, McCollum ED, Toenjes AK, McCracken JP, Thompson LM, Castanaza A, Diaz A, Rosa G, Kirby MA, Mukeshimana A, Myers R, Lenzen PM, Craik R, Jabbarzadeh S, Elon L, Garg SS, Balakrishnan K, Thangavel G, Peel JL, Clasen TF, Davila-Roman VG, Papageorghiou AT, de las Fuentes L, Checkley W; HAPIN Investigators. Lung Ultrasound Protocol and Quality Control of Image Interpretation Using an Adjudication Panel in the Household Air Pollution Intervention Network (HAPIN) Trial. Ultrasound Med Biol. 2023 May;49(5):1194-1201. doi: 10.1016/j.ultrasmedbio.2023.01.005. Epub 2023 Feb 19.
- Williams KN, Quinn A, North H, Wang J, Pillarisetti A, Thompson LM, Diaz-Artiga A, Balakrishnan K, Thangavel G, Rosa G, Ndagijimana F, Underhill LJ, Kirby MA, Puzzolo E, Hossen S, Waller LA, Peel JL, Rosenthal JP, Clasen TF, Harvey SA, Checkley W; HAPIN Investigators. Fidelity and adherence to a liquefied petroleum gas stove and fuel intervention: The multi-country Household Air Pollution Intervention Network (HAPIN) trial. Environ Int. 2023 Sep;179:108160. doi: 10.1016/j.envint.2023.108160. Epub 2023 Aug 19.
- Younger A, Alkon A, Harknett K, Kirby MA, Elon L, Lovvorn AE, Wang J, Ye W, Diaz-Artiga A, McCracken JP, Castanaza Gonzalez A, Monroy Alarcon L, Mukeshimana A, Rosa G, Chiang M, Balakrishnan K, Garg SS, Pillarisetti A, Piedrahita R, Johnson M, Craik R, Papageorghiou AT, Toenjes A, Quinn A, Williams KN, Underhill L, Chang HH, Naeher LP, Rosenthal J, Checkley W, Peel JL, Clasen TF, Thompson LM; HAPIN investigators. Effects of a LPG stove and fuel intervention on adverse maternal outcomes: A multi-country randomized controlled trial conducted by the Household Air Pollution Intervention Network (HAPIN). Environ Int. 2023 Aug;178:108059. doi: 10.1016/j.envint.2023.108059. Epub 2023 Jun 28.
- Checkley W, Hossen S, Rosa G, Thompson LM, McCracken JP, Diaz-Artiga A, Balakrishnan K, Simkovich SM, Underhill LJ, Nicolaou L, Hartinger SM, Davila-Roman VG, Kirby MA, Clasen TF, Rosenthal J, Peel JL, On Behalf Of Household Air Pollution Intervention Network Hapin Investigators. Facing the Realities of Pragmatic Design Choices in Environmental Health Studies: Experiences from the Household Air Pollution Intervention Network Trial. Int J Environ Res Public Health. 2022 Mar 23;19(7):3790. doi: 10.3390/ijerph19073790.
- Hennessee I, Kirby MA, Misago X, Mupfasoni J, Clasen T, Kitron U, Rosenthal JP, Hakizimana E. Assessing the Effects of Cooking Fuels on Anopheles Mosquito Behavior: An Experimental Study in Rural Rwanda. Am J Trop Med Hyg. 2022 Feb 21;106(4):1196-1208. doi: 10.4269/ajtmh.21-0997. Print 2022 Apr 6.
- Johnson M, Pillarisetti A, Piedrahita R, Balakrishnan K, Peel JL, Steenland K, Underhill LJ, Rosa G, Kirby MA, Diaz-Artiga A, McCracken J, Clark ML, Waller L, Chang HH, Wang J, Dusabimana E, Ndagijimana F, Sambandam S, Mukhopadhyay K, Kearns KA, Campbell D, Kremer J, Rosenthal JP, Checkley W, Clasen T, Naeher L; the Household Air Pollution Intervention Network (HAPIN) Trial Investigators. Exposure Contrasts of Pregnant Women during the Household Air Pollution Intervention Network Randomized Controlled Trial. Environ Health Perspect. 2022 Sep;130(9):97005. doi: 10.1289/EHP10295. Epub 2022 Sep 16.
- Kaufman JD. Invited Perspective: A Critical Part of a Real-World Environmental Health Trial Is to Demonstrate That the Intervention Reduced Exposure. Environ Health Perspect. 2022 Sep;130(9):91304. doi: 10.1289/EHP11697. Epub 2022 Sep 16. No abstract available.
- Rajamani KD, Sambandam S, Mukhopadhyay K, Puttaswamy N, Thangavel G, Natesan D, Ramasamy R, Sendhil S, Natarajan A, Aravindalochan V, Pillarisetti A, Johnson M, Rosenthal J, Steenland K, Piedhrahita R, Peel J, Clark ML, Boyd Barr D, Rajkumar S, Young B, Jabbarzadeh S, Rosa G, Kirby M, Underhill LJ, Diaz-Artiga A, Lovvorn A, Checkley W, Clasen T, Balakrishnan K. Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India. J Vis Exp. 2022 Dec 23;(190). doi: 10.3791/64144.
- Ye W, Thangavel G, Pillarisetti A, Steenland K, Peel JL, Balakrishnan K, Jabbarzadeh S, Checkley W, Clasen T; HAPIN Investigators. Association between personal exposure to household air pollution and gestational blood pressure among women using solid cooking fuels in rural Tamil Nadu, India. Environ Res. 2022 May 15;208:112756. doi: 10.1016/j.envres.2022.112756. Epub 2022 Jan 20.
- Ye W, Steenland K, Quinn A, Liao J, Balakrishnan K, Rosa G, Ndagijimana F, Ntivuguruzwa JD, Thompson LM, McCracken JP, Diaz-Artiga A, Rosenthal JP, Papageorghiou A, Davila-Roman VG, Pillarisetti A, Johnson M, Wang J, Nicolaou L, Checkley W, Peel JL, Clasen TF; Household Air Pollution Intervention Network (HAPIN) trial Investigators. Effects of a Liquefied Petroleum Gas Stove Intervention on Gestational Blood Pressure: Intention-to-Treat and Exposure-Response Findings From the HAPIN Trial. Hypertension. 2022 Aug;79(8):1887-1898. doi: 10.1161/HYPERTENSIONAHA.122.19362. Epub 2022 Jun 16.
- Hengstermann M, Diaz-Artiga A, Otzoy-Sucuc R, Laura Maria Ruiz-Aguilar A, Thompson LM; HAPIN Investigators. Developing Visual Messages to Support Liquefied Petroleum Gas Use in Intervention Homes in the Household Air Pollution Intervention Network (HAPIN) Trial in Rural Guatemala. Health Educ Behav. 2021 Oct;48(5):651-669. doi: 10.1177/1090198121996280. Epub 2021 Mar 18.
- Liao J, Kirby MA, Pillarisetti A, Piedrahita R, Balakrishnan K, Sambandam S, Mukhopadhyay K, Ye W, Rosa G, Majorin F, Dusabimana E, Ndagijimana F, McCracken JP, Mollinedo E, de Leon O, Diaz-Artiga A, Thompson LM, Kearns KA, Naeher L, Rosenthal J, Clark ML, Steenland K, Waller LA, Checkley W, Peel JL, Clasen T, Johnson M; HAPIN Investigators. LPG stove and fuel intervention among pregnant women reduce fine particle air pollution exposures in three countries: Pilot results from the HAPIN trial. Environ Pollut. 2021 Dec 15;291:118198. doi: 10.1016/j.envpol.2021.118198. Epub 2021 Sep 21.
- Quinn AK, Williams KN, Thompson LM, Harvey SA, Piedrahita R, Wang J, Quinn C, Pillarisetti A, McCracken JP, Rosenthal JP, Kirby MA, Diaz Artiga A, Thangavel G, Rosa G, Miranda JJ, Checkley W, Peel JL, Clasen TF. Fidelity and Adherence to a Liquefied Petroleum Gas Stove and Fuel Intervention during Gestation: The Multi-Country Household Air Pollution Intervention Network (HAPIN) Randomized Controlled Trial. Int J Environ Res Public Health. 2021 Nov 29;18(23):12592. doi: 10.3390/ijerph182312592.
- Simkovich SM, Underhill LJ, Kirby MA, Crocker ME, Goodman D, McCracken JP, Thompson LM, Diaz-Artiga A, Castanaza-Gonzalez A, Garg SS, Balakrishnan K, Thangavel G, Rosa G, Peel JL, Clasen TF, McCollum ED, Checkley W; HAPIN Investigators. Resources and Geographic Access to Care for Severe Pediatric Pneumonia in Four Resource-limited Settings. Am J Respir Crit Care Med. 2022 Jan 15;205(2):183-197. doi: 10.1164/rccm.202104-1013OC.
- Barr DB, Puttaswamy N, Jaacks LM, Steenland K, Rajkumar S, Gupton S, Ryan PB, Balakrishnan K, Peel JL, Checkley W, Clasen T, Clark ML; (HAPIN Investigative Team). Design and Rationale of the Biomarker Center of the Household Air Pollution Intervention Network (HAPIN) Trial. Environ Health Perspect. 2020 Apr;128(4):47010. doi: 10.1289/EHP5751. Epub 2020 Apr 29.
- Burrowes VJ, Piedrahita R, Pillarisetti A, Underhill LJ, Fandino-Del-Rio M, Johnson M, Kephart JL, Hartinger SM, Steenland K, Naeher L, Kearns K, Peel JL, Clark ML, Checkley W; HAPIN Investigators. Comparison of next-generation portable pollution monitors to measure exposure to PM2.5 from household air pollution in Puno, Peru. Indoor Air. 2020 May;30(3):445-458. doi: 10.1111/ina.12638. Epub 2020 Jan 23.
- Clasen T, Checkley W, Peel JL, Balakrishnan K, McCracken JP, Rosa G, Thompson LM, Barr DB, Clark ML, Johnson MA, Waller LA, Jaacks LM, Steenland K, Miranda JJ, Chang HH, Kim DY, McCollum ED, Davila-Roman VG, Papageorghiou A, Rosenthal JP; HAPIN Investigators. Design and Rationale of the HAPIN Study: A Multicountry Randomized Controlled Trial to Assess the Effect of Liquefied Petroleum Gas Stove and Continuous Fuel Distribution. Environ Health Perspect. 2020 Apr;128(4):47008. doi: 10.1289/EHP6407. Epub 2020 Apr 29.
- Crocker ME, Hossen S, Goodman D, Simkovich SM, Kirby M, Thompson LM, Rosa G, Garg SS, Thangavel G, McCollum ED, Peel J, Clasen T, Checkley W; HAPIN Investigators. Effects of high altitude on respiratory rate and oxygen saturation reference values in healthy infants and children younger than 2 years in four countries: a cross-sectional study. Lancet Glob Health. 2020 Mar;8(3):e362-e373. doi: 10.1016/S2214-109X(19)30543-1.
- Johnson MA, Steenland K, Piedrahita R, Clark ML, Pillarisetti A, Balakrishnan K, Peel JL, Naeher LP, Liao J, Wilson D, Sarnat J, Underhill LJ, Burrowes V, McCracken JP, Rosa G, Rosenthal J, Sambandam S, de Leon O, Kirby MA, Kearns K, Checkley W, Clasen T; HAPIN Investigators. Air Pollutant Exposure and Stove Use Assessment Methods for the Household Air Pollution Intervention Network (HAPIN) Trial. Environ Health Perspect. 2020 Apr;128(4):47009. doi: 10.1289/EHP6422. Epub 2020 Apr 29.
- Puttaswamy N, Saidam S, Rajendran G, Arumugam K, Gupton S, Williams EW, Johnson CL, Panuwet P, Rajkumar S, Clark ML, Peel JL, Checkley W, Clasen T, Balakrishnan K, Barr DB. Cross-validation of biomonitoring methods for polycyclic aromatic hydrocarbon metabolites in human urine: Results from the formative phase of the Household Air Pollution Intervention Network (HAPIN) trial in India. J Chromatogr B Analyt Technol Biomed Life Sci. 2020 Oct 1;1154:122284. doi: 10.1016/j.jchromb.2020.122284. Epub 2020 Jul 29.
- Sambandam S, Mukhopadhyay K, Sendhil S, Ye W, Pillarisetti A, Thangavel G, Natesan D, Ramasamy R, Natarajan A, Aravindalochanan V, Vinayagamoorthi A, Sivavadivel S, Uma Maheswari R, Balakrishnan L, Gayatri S, Nargunanathan S, Madhavan S, Puttaswamy N, Garg SS, Quinn A, Rosenthal J, Johnson M, Liao J, Steenland K, Piedhrahita R, Peel J, Checkley W, Clasen T, Balakrishnan K. Exposure contrasts associated with a liquefied petroleum gas (LPG) intervention at potential field sites for the multi-country household air pollution intervention network (HAPIN) trial in India: results from pilot phase activities in rural Tamil Nadu. BMC Public Health. 2020 Nov 26;20(1):1799. doi: 10.1186/s12889-020-09865-1.
- Simkovich SM, Underhill LJ, Kirby MA, Goodman D, Crocker ME, Hossen S, McCracken JP, de Leon O, Thompson LM, Garg SS, Balakrishnan K, Thangavel G, Rosa G, Peel JL, Clasen TF, McCollum ED, Checkley W. Design and conduct of facility-based surveillance for severe childhood pneumonia in the Household Air Pollution Intervention Network (HAPIN) trial. ERJ Open Res. 2020 Mar 23;6(1):00308-2019. doi: 10.1183/23120541.00308-2019. eCollection 2020 Jan.
- Williams KN, Thompson LM, Sakas Z, Hengstermann M, Quinn A, Diaz-Artiga A, Thangavel G, Puzzolo E, Rosa G, Balakrishnan K, Peel J, Checkley W, Clasen TF, Miranda JJ, Rosenthal JP, Harvey SA; Household Air Pollution Intervention Network (HAPIN) trial Investigators; HAPIN Investigators. Designing a comprehensive behaviour change intervention to promote and monitor exclusive use of liquefied petroleum gas stoves for the Household Air Pollution Intervention Network (HAPIN) trial. BMJ Open. 2020 Sep 29;10(9):e037761. doi: 10.1136/bmjopen-2020-037761.
- Wilson DL, Williams KN, Pillarisetti A. 2020. An Integrated Sensor Data Logging, Survey, and Analytics Platform for Field Research and Its Application in HAPIN, a Multi-Center Household Energy Intervention Trial. Sustainability. 2020; 12 (5): 1805. doi:10.3390/su12051805.
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- IRB00089799
- 1UM1HL134590-01 (Concessão/Contrato do NIH dos EUA)
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