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Assessing the Effect of Sustainable Small-scale Egg Production on Maternal and Child Nutrition in Rural Zambia

2. februar 2018 oppdatert av: Cornell University

Animal source foods (ASF), such as meat and eggs, are rich in nutrients critical for growth and development. Yet, for poor children in developing countries, ASF consumption is limited by cost, inadequate caregiver knowledge, and lack of local production and physical availability. The impact of HH- and village-level livestock interventions on household dietary diversity and nutritional status in resource-poor communities is not well established. The objective of this study is to test the effectiveness of local egg production intervention on maternal and child diets and child nutrition status.

This project takes place in the Luangwa Valley, Zambia in partnership with a local non-governmental organization, COMACO. Twenty communities will be assigned to the intervention, and 20 matched communities will be selected as controls. In each intervention community, an egg production facility will be built, owned, and operated by trained COMACO farmers.

Households (HHs) in each community will be sampled twice annually for 1 year pre-intervention (baseline) and 1 year post-intervention to assess dietary diversity and nutritional status. Data analysis will test for a change in these outcomes from baseline in each intervention community compared to the matched control community.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

The objective of this study is to test the effectiveness of an intervention establishing local egg production on maternal and child diets and nutrition status. The investigators hypothesize that this intervention, combined with appropriate agricultural extension and nutrition education programs, will result in: 1) increased total household, maternal, and child consumption of eggs; 2) improved maternal and child dietary quality; and 3) improved infant/ young child nutritional status.

The investigators will test this hypothesis in the Luangwa Valley, Zambia in partnership with a local non-governmental organization, Community Markets for Conservation (COMACO). The forty study sites are located in four geographic clusters (Chiefdoms) in Eastern Province Zambia. These Chiefdoms are located in two districts: Mambwe (Mnkhanya, Jumbe, and Nsefu Chiefdoms) and Lundazi (Mwanya Chiefdom).

Twenty communities will be assigned to the intervention (egg production), and 20 matched communities will be selected as controls (no intervention). In each intervention community, an egg production facility will be built, each owned and operated by trained COMACO farmers, mostly women. Each group will be provided layer pullets at point-of-lay and layer mash. Facility owners will make all business decisions, retain all profits, and will be responsible for all upkeep costs.

In a repeated cross-sectional study design, indicators of food security, wealth, diet, nutritional status (anthropometrics), and health and wellbeing will be assessed in all egg-producing HHs and in women/child dyads (children aged 6-36 months) residing in the area surrounding each facility or central control point. Data will be collected twice annually for 1 year pre-intervention (baseline) and 1 year post-intervention.

The exposure of interest is living in an egg-producing community. In the primary analysis, the investigators will use hierarchical mixed effects modeling to analyze the effect of the program on each of the outcomes of interest (see Outcome Measures section for details).

Studietype

Intervensjonell

Registrering (Faktiske)

3546

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Zambia
    • Eastern Province
      • Mfuwe, Eastern Province, Zambia
        • COMACO

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

6 måneder til 3 år (Barn)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. the HH dwelling is ≤1.5 km from the egg production facility or central control point;
  2. there is a child 6-36 months of age in the HH; and,

Additionally, all HHs that include a member of the egg production group will be enrolled in the study, regardless of whether or not they meet the above inclusion criteria.

Exclusion Criteria:

  1. the mother/primary caretaker or head of HH cannot converse with the field staff because of language;
  2. the mother/primary caretaker or head of HH is unable to give informed consent or complete an interview without assistance; or,
  3. the child is deformed, disabled, severely ill, or unable to cooperate for anthropometric measures.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Ikke-randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Innblanding
Annen: Egg production
Establishment and support of a community-owned and -operated egg production facility located at a central location in the community
Ingen inngripen: Styre

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in child height-for-age Z-score
Tidsramme: 6, 12, 18, and 24 months after intervention
Recumbent length for children < 24 months and standing height for those 24-36 months, with WHO Child Growth Standards as the reference population.
6, 12, 18, and 24 months after intervention

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in household egg consumption
Tidsramme: 6, 12, 18, and 24 months after intervention
7 day recall on total number of chicken or other eggs consumed in the household
6, 12, 18, and 24 months after intervention
Change in maternal egg consumption
Tidsramme: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in child egg consumption
Tidsramme: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in maternal dietary diversity
Tidsramme: 6, 12, 18, and 24 months after intervention
Measured by Women's Dietary Diversity Score, a 24 hour recall of all foods consumed, organized into 9 food groups
6, 12, 18, and 24 months after intervention
Change in child dietary diversity
Tidsramme: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in child stunting
Tidsramme: 6, 12, 18, and 24 months after intervention
Defined as having a height-for-age z-score < -2.0, with WHO Growth Standards as the reference population.
6, 12, 18, and 24 months after intervention

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in household food security
Tidsramme: 6, 12, 18, and 24 months after intervention
Measure by Household Food Insecurity Access Scale (HFIAS), Household Hunger Scale (HHS) and/or Months of inadequate household food provisioning (MIHFP)
6, 12, 18, and 24 months after intervention
Change in producer household and poultry incomes
Tidsramme: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in maternal physical and emotional health
Tidsramme: 6, 12, 18, and 24 months after intervention
Measured through a 6-item index adapted from RAND short form
6, 12, 18, and 24 months after intervention
Change in maternal nutritional status
Tidsramme: 6, 12, 18, and 24 months after intervention
Measured by mid-upper arm circumference and body mass index
6, 12, 18, and 24 months after intervention
Change in child weight-for-height Z-score
Tidsramme: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in child weight-for-age Z-score
Tidsramme: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Cornell University

Samarbeidspartnere

Community Markets for Conservation (COMACO)

Etterforskere

  • Hovedetterforsker: Alexander J Travis, VMD, PhD, Cornell University

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Hjelpsomme linker

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. juni 2014

Primær fullføring (Faktiske)

1. juli 2016

Studiet fullført (Faktiske)

1. mai 2017

Datoer for studieregistrering

Først innsendt

3. august 2015

Først innsendt som oppfylte QC-kriteriene

4. august 2015

Først lagt ut (Anslag)

6. august 2015

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

6. februar 2018

Siste oppdatering sendt inn som oppfylte QC-kriteriene

2. februar 2018

Sist bekreftet

1. februar 2018

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 1402004456

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