Social Network Interventions in Rural Honduras
Diffusion of Health Interventions Across Social Networks in Honduran Villages
This project will examine the spread of health interventions with a randomized control trial design by introducing public health interventions in 32 villages in the Honduran Department of Lempira. Based on identified public health needs in the region, namely improved drinking water and diet, this study will provide training on the use of chlorine (sodium hypochlorite) for water purification and multivitamins for nutritional supplementation. In some villages, individuals selected for their social connectedness will be trained and given coupons that can be redeemed for either chlorine bleach or multivitamins, and these persons will be asked to spread this information and distribute coupons to four people of their choosing. In other villages, individuals selected at random will receive the same training, materials, and instructions. A second wave of coupon distribution will provide coupons to those who received a coupon from the original "seed" groups so that they may disperse these coupons further out in the social networks. Over the following months, study investigators will look at how knowledge of these health practices, and uptake or and adherence to the practices, spreads throughout the villages.
More specifically, the investigators will examine the speed and extent of spreading of these new health practices after introducing them to three different initial "seed" groups: (1) people chosen on the basis of being named as a friend by many people in their village, (2) people chosen based on being named as a friend by a randomly chosen individual, and (3) a group of randomly chosen individuals. It is hypothesized that spread will occur faster and/or to a greater extent when the intervention is started in groups 1 and 2 versus group 3 (control group).
Studienübersicht
Status
Studientyp
Einschreibung (Tatsächlich)
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
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Connecticut
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New Haven, Connecticut, Vereinigte Staaten, 06517
- Yale University
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- Residents of Targeted Communities, ages 15 and up
Exclusion Criteria:
- Children younger than age 15
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Grundlegende Wissenschaft
- Zuteilung: Zufällig
- Interventionsmodell: Fakultätszuweisung
- Maskierung: Single
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
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Aktiver Komparator: Random-Cloro
exposure to water chlorination
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"Seed" individuals in village are given Clorox bleach for water purification, with training on use and general information on water hygiene, along with coupons to distribute to others in village
Andere Namen:
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Aktiver Komparator: Random-Vitamin
exposure to vitamin use
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"Seed" individuals in village are given daily adult multivitamin, with training on use and general nutrition information, along with coupons to distribute to others in village
Andere Namen:
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Experimental: Indegree-Cloro
high in-degree, exposure to water chlorination
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"Seed" individuals in village are given Clorox bleach for water purification, with training on use and general information on water hygiene, along with coupons to distribute to others in village
Andere Namen:
"Seed" individuals for starting intervention are chosen on the basis of high (social network) in-degree
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Experimental: Indegree-Vitamin
high in-degree, exposure to vitamin use
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"Seed" individuals in village are given daily adult multivitamin, with training on use and general nutrition information, along with coupons to distribute to others in village
Andere Namen:
"Seed" individuals for starting intervention are chosen on the basis of high (social network) in-degree
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Experimental: Nominated-Cloro
nominated by random, exposure to water chlorination
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"Seed" individuals in village are given Clorox bleach for water purification, with training on use and general information on water hygiene, along with coupons to distribute to others in village
Andere Namen:
"Seed" individuals for starting intervention are chosen on the basis of being named as a friend/alter of a randomly selected individual
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Experimental: Nominated-Vitamin
nominated by random, exposure to vitamin use
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"Seed" individuals in village are given daily adult multivitamin, with training on use and general nutrition information, along with coupons to distribute to others in village
Andere Namen:
"Seed" individuals for starting intervention are chosen on the basis of being named as a friend/alter of a randomly selected individual
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Intervention Spread
Zeitfenster: October 2012
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Use of health product among community members will be tracked.
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October 2012
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Mitarbeiter und Ermittler
Sponsor
Mitarbeiter
Ermittler
- Hauptermittler: Nicholas A Christakis, MD, PhD, Yale University
- Studienleiter: Thomas Keegan, PhD, Yale University
Publikationen und hilfreiche 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 (Schätzen)
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
- Lempira_Phase2
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