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

2. februar 2018 opdateret af: 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.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret 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).

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

3546

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

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

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

6 måneder til 3 år (Barn)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

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

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Intervention
Andet: Egg production
Establishment and support of a community-owned and -operated egg production facility located at a central location in the community
Ingen indgriben: Styring

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
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
Foranstaltningsbeskrivelse
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
Foranstaltningsbeskrivelse
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

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Cornell University

Samarbejdspartnere

Community Markets for Conservation (COMACO)

Efterforskere

  • Ledende efterforsker: Alexander J Travis, VMD, PhD, Cornell University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Hjælpsomme links

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. juni 2014

Primær færdiggørelse (Faktiske)

1. juli 2016

Studieafslutning (Faktiske)

1. maj 2017

Datoer for studieregistrering

Først indsendt

3. august 2015

Først indsendt, der opfyldte QC-kriterier

4. august 2015

Først opslået (Skøn)

6. august 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. februar 2018

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. februar 2018

Sidst verificeret

1. februar 2018

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 1402004456

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Underernæring, barn

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