Assessing the Effect of Sustainable Small-scale Egg Production on Maternal and Child Nutrition in Rural Zambia
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.
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
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).
Studientyp
Einschreibung (Tatsächlich)
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
-
-
Eastern Province
-
Mfuwe, Eastern Province, Sambia
- COMACO
-
-
Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- the HH dwelling is ≤1.5 km from the egg production facility or central control point;
- 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:
- the mother/primary caretaker or head of HH cannot converse with the field staff because of language;
- the mother/primary caretaker or head of HH is unable to give informed consent or complete an interview without assistance; or,
- the child is deformed, disabled, severely ill, or unable to cooperate for anthropometric measures.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Nicht randomisiert
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Keine (Offenes Etikett)
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
|
Experimental: Intervention
|
Establishment and support of a community-owned and -operated egg production facility located at a central location in the community
|
|
Kein Eingriff: Kontrolle
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Change in child height-for-age Z-score
Zeitfenster: 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
|
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Change in household egg consumption
Zeitfenster: 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
Zeitfenster: 6, 12, 18, and 24 months after intervention
|
6, 12, 18, and 24 months after intervention
|
|
|
Change in child egg consumption
Zeitfenster: 6, 12, 18, and 24 months after intervention
|
6, 12, 18, and 24 months after intervention
|
|
|
Change in maternal dietary diversity
Zeitfenster: 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
Zeitfenster: 6, 12, 18, and 24 months after intervention
|
6, 12, 18, and 24 months after intervention
|
|
|
Change in child stunting
Zeitfenster: 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 Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Change in household food security
Zeitfenster: 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
Zeitfenster: 6, 12, 18, and 24 months after intervention
|
6, 12, 18, and 24 months after intervention
|
|
|
Change in maternal physical and emotional health
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 6, 12, 18, and 24 months after intervention
|
6, 12, 18, and 24 months after intervention
|
|
|
Change in child weight-for-age Z-score
Zeitfenster: 6, 12, 18, and 24 months after intervention
|
6, 12, 18, and 24 months after intervention
|
Mitarbeiter und Ermittler
Sponsor
Mitarbeiter
Ermittler
- Hauptermittler: Alexander J Travis, VMD, PhD, Cornell University
Publikationen und hilfreiche Links
Nützliche Links
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- 1402004456
Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .
Klinische Studien zur Unterernährung, Kind
-
Texas Woman's UniversityAbgeschlossenZur Bestimmung der psychometrischen Eigenschaften des Short Child-BerufsprofilsVereinigte Staaten
-
RenJi HospitalAbgeschlossenVerhältnis Thrombozytenzahl/Milzdurchmesser | Child-Pugh-KlassifizierungChina
-
Stanford UniversityNational Cancer Institute (NCI)BeendetRezidivierendes hepatozelluläres Karzinom | Child-Pugh-Klasse A | Child-Pugh-Klasse BVereinigte Staaten, Japan
-
Jay ZuckermanAbgeschlossenDyspraxie | Entwicklungsdyspraxie | Tollpatschiges Kind-SyndromIsrael
-
Boehringer IngelheimNicht länger verfügbarLungenerkrankungen, interstitiell (bei pädiatrischen Populationen) | Interstitielle Lungenerkrankung im Kindesalter (chILD)
-
Ohio State University Comprehensive Cancer CenterVarian Medical SystemsAbgeschlossenChild-Pugh-Klasse A | Hepatozelluläres Karzinom im Stadium IIIA | Hepatozelluläres Karzinom im Stadium IIIB | Hepatozelluläres Karzinom im Stadium IIIC | Hepatozelluläres Karzinom im Stadium IVA | Hepatozelluläres Karzinom im Stadium IVB | Child-Pugh-Klasse BVereinigte Staaten
-
Centre Hospitalier Universitaire DijonAbgeschlossenChild-Pugh-A-Hepatozelluläres KarzinomFrankreich
-
University of Texas Southwestern Medical CenterStanford UniversityRekrutierungPsychische Probleme (z. B. Depression, Psychose, Persönlichkeitsstörung, Drogenmissbrauch) | Eltern-Kind-Beziehungen | Frühgeborenes | Entwicklung, KindVereinigte Staaten
-
Universidad de MurciaAbgeschlossenDown-Syndrom | Muskelhypotonie | CHILD-Syndrom | Säuglingsdiskette | Muskel, DisketteSpanien
-
University Hospital, ToulouseAbgeschlossenKindersyndromFrankreich
Klinische Studien zur Egg production
-
International Food Policy Research InstituteHelen Keller International; Foreign Affairs, Trade and Development, CanadaAbgeschlossenAnämie | WachstumsverzögerungBurkina Faso
-
National Taiwan University HospitalUnbekanntReflux-ÖsophagitisTaiwan
-
Ruhr University of BochumAbgeschlossenGesunde Probanden | Komplexes regionales Schmerzsyndrom Typ I der oberen Extremität | Einseitige Schmerzen in den Gliedmaßen anderen UrsprungsDeutschland
-
Greg O'GradyAktiv, nicht rekrutierendErwachsene, Magenbeschwerden, Verdacht auf MagenmotilitätsstörungenNeuseeland
-
Riphah International UniversityRekrutierungSportphysiotherapiePakistan
-
Sabine GabryschGerman Research Foundation; German Federal Ministry of Education and Research; Department for International Development, United Kingdom und andere MitarbeiterAbgeschlossen
-
University of British ColumbiaAbgeschlossenErnährungssicherheit im HaushaltKambodscha
-
Stanford UniversityRekrutierung
-
Shanghai Ninth People's Hospital Affiliated to...Aktiv, nicht rekrutierendVerzögerte neurokognitive ErholungChina
-
Shanghai Ninth People's Hospital Affiliated to...RekrutierungPOCD – Postoperative kognitive DysfunktionChina