Evaluating the Relationship Between Environmental Risk Factors in Housing Types and Chronic Respiratory Diseases in Ho Chi Minh City
3 de agosto de 2017 actualizado por: Olivier Michel, Brugmann University Hospital
The research question is "Are the different types of house in Ho Chi Minh city equally contributing to chronic respiratory diseases?".
According to this question, a cross-sectional and explorative study was set up to explore the differences in the environmental characteristics and prevalence of chronic respiratory diseases among common housing types in Ho Chi Minh city. Preliminary work was performed in 100 houses (20 houses per type, included tube houses, rental houses, rural houses, slum and apartment) from November 2013 to June 2015. It included measures by environmental devices, questionnaires and indoor activities diaries.
This study will aim to collect information about the prevalence of chronic respiratory diseases (CRDs) inside those house types to understand more about role of house types in developing CRDs.
The objective is:
- to evaluate the relationships between the type of house and lung function of inhabitants in each housing type.
- to evaluate the effects of environmental risk factors in each house type on prevalence of CRDs
Descripción general del estudio
Estado
Terminado
Condiciones
Intervención / Tratamiento
Tipo de estudio
Intervencionista
Inscripción (Actual)
1500
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
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Ho Chi Minh City, Vietnam, 7000
- Pham Ngoc Thach University of Medicine
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
10 años a 65 años (Niño, Adulto, Adulto Mayor)
Acepta Voluntarios Saludables
Sí
Géneros elegibles para el estudio
Todos
Descripción
Inclusion Criteria:
- Everybody
Exclusion Criteria:
- Not able to answer the questionnaire or give informed consent
- Have a contra-indication for lung function test (acute myocardial infarction less that 1 month ago, pain related to spirometry, dementia/confused)
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Poner en pantalla
- Asignación: No aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: Tube houses
Tube Houses.
Group of 75-100 houses, with 4 inhabitants per house.
Expected number of participants: 300-400.
Predicted number of non-smoker chronic respiratory disease of 18-24.
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Basic lung function test performed with a micro-spirometer, without broncho dilatator
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Experimental: Apartment
Apartments.
Group of 75-100 apartments, with 4 inhabitants per apartment.
Expected number of participants: 300-400.
Predicted number of non-smoker chronic respiratory disease of 18-24.
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Basic lung function test performed with a micro-spirometer, without broncho dilatator
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Experimental: Rental Houses
Rental Houses.
Group of 150-200 rental houses, with 2 inhabitants per rental house.
Expected number of participants: 300-400.
Predicted number of non-smoker chronic respiratory disease of 18-24.
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Basic lung function test performed with a micro-spirometer, without broncho dilatator
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Experimental: Rural houses
Rural Houses.
Group of 40-60 rural houses, with 5 inhabitant per rural house.
Expected number of participants: 200-300.
Predicted number of non-smoker chronic respiratory disease of 12-18.
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Basic lung function test performed with a micro-spirometer, without broncho dilatator
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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FEV1/FVC
Periodo de tiempo: 5 minutes
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Basic lung function test, without broncho dilatation (micro-spirometer).
All lung function related outcomes are performed during the same test.
FEV1: forced expiratory volume in one second.
FVC: Forced vital capacity.
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5 minutes
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FVC
Periodo de tiempo: 5 minutes
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Basic lung function test, without broncho dilatation (micro-spirometer).
All lung function related outcomes are performed during the same test.FVC: Forced vital capacity.
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5 minutes
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VC
Periodo de tiempo: 5 minutes
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Basic lung function test, without broncho dilatation (micro-spirometer).
All lung function related outcomes performed during the same test.
VC: Vital capacity
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5 minutes
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FEF 25-75%
Periodo de tiempo: 5 minutes
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Basic lung function test, without broncho dilatation (micro-spirometer).All lung function related outcomes are performed during the same test.
FEF: Forced expiratory flow
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5 minutes
|
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Socio-demographic status
Periodo de tiempo: around 10 minutes
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Socio-demographic data, assessed by a home made questionnaire
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around 10 minutes
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Health status
Periodo de tiempo: around 10 minutes
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Health status (symptomatology) data, assessed by a home made questionnaire
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around 10 minutes
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Indoor air exposure time
Periodo de tiempo: around 10 minutes
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Indoor air exposure (time spent indoor within housing types, with associated air characteristics) data, assessed by a home made questionnaire
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around 10 minutes
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Publicaciones y enlaces útiles
La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.
Publicaciones Generales
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- Cotes JE, Chinn DJ, Quanjer PH, Roca J, Yernault JC. Standardization of the measurement of transfer factor (diffusing capacity). Report Working Party Standardization of Lung Function Tests, European Community for Steel and Coal. Official Statement of the European Respiratory Society. Eur Respir J Suppl. 1993 Mar;16:41-52. No abstract available.
- Wang X, Dockery DW, Wypij D, Fay ME, Ferris BG Jr. Pulmonary function between 6 and 18 years of age. Pediatr Pulmonol. 1993 Feb;15(2):75-88. doi: 10.1002/ppul.1950150204.
- Quanjer PH, Stocks J, Polgar G, Wise M, Karlberg J, Borsboom G. Compilation of reference values for lung function measurements in children. Eur Respir J Suppl. 1989 Mar;4:184S-261S. No abstract available.
- COPD-more than just tobacco smoke. Lancet. 2009 Aug 29;374(9691):663. doi: 10.1016/S0140-6736(09)61535-X. No abstract available.
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- Samet JM, Spengler JD. Indoor environments and health: moving into the 21st century. Am J Public Health. 2003 Sep;93(9):1489-93. doi: 10.2105/ajph.93.9.1489.
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Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio
1 de septiembre de 2016
Finalización primaria (Actual)
1 de julio de 2017
Finalización del estudio (Actual)
1 de julio de 2017
Fechas de registro del estudio
Enviado por primera vez
8 de septiembre de 2016
Primero enviado que cumplió con los criterios de control de calidad
8 de septiembre de 2016
Publicado por primera vez (Estimar)
13 de septiembre de 2016
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
4 de agosto de 2017
Última actualización enviada que cumplió con los criterios de control de calidad
3 de agosto de 2017
Última verificación
1 de agosto de 2017
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- CHUB-CRD-Housing
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .