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

2 februari 2018 bijgewerkt door: 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.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

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

Ingrijpend

Inschrijving (Werkelijk)

3546

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

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

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

6 maanden tot 3 jaar (Kind)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

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.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Preventie
  • Toewijzing: Niet-gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Interventie
Ander: Egg production
Establishment and support of a community-owned and -operated egg production facility located at a central location in the community
Geen tussenkomst: Controle

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in child height-for-age Z-score
Tijdsspanne: 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

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in household egg consumption
Tijdsspanne: 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
Tijdsspanne: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in child egg consumption
Tijdsspanne: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in maternal dietary diversity
Tijdsspanne: 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
Tijdsspanne: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in child stunting
Tijdsspanne: 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

Andere uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in household food security
Tijdsspanne: 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
Tijdsspanne: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in maternal physical and emotional health
Tijdsspanne: 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
Tijdsspanne: 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
Tijdsspanne: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention
Change in child weight-for-age Z-score
Tijdsspanne: 6, 12, 18, and 24 months after intervention
6, 12, 18, and 24 months after intervention

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Cornell University

Medewerkers

Community Markets for Conservation (COMACO)

Onderzoekers

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

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Nuttige links

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 juni 2014

Primaire voltooiing (Werkelijk)

1 juli 2016

Studie voltooiing (Werkelijk)

1 mei 2017

Studieregistratiedata

Eerst ingediend

3 augustus 2015

Eerst ingediend dat voldeed aan de QC-criteria

4 augustus 2015

Eerst geplaatst (Schatting)

6 augustus 2015

Updates van studierecords

Laatste update geplaatst (Werkelijk)

6 februari 2018

Laatste update ingediend die voldeed aan QC-criteria

2 februari 2018

Laatst geverifieerd

1 februari 2018

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • 1402004456

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