- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01672580
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).
Study Overview
Status
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Connecticut
-
New Haven, Connecticut, United States, 06517
- Yale University
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Residents of Targeted Communities, ages 15 and up
Exclusion Criteria:
- Children younger than age 15
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Factorial Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Random-Cloro
exposure to water chlorination
|
"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
Other Names:
|
Active Comparator: Random-Vitamin
exposure to vitamin use
|
"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
Other Names:
|
Experimental: Indegree-Cloro
high in-degree, exposure to water chlorination
|
"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
Other Names:
"Seed" individuals for starting intervention are chosen on the basis of high (social network) in-degree
|
Experimental: Indegree-Vitamin
high in-degree, exposure to vitamin use
|
"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
Other Names:
"Seed" individuals for starting intervention are chosen on the basis of high (social network) in-degree
|
Experimental: Nominated-Cloro
nominated by random, exposure to water chlorination
|
"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
Other Names:
"Seed" individuals for starting intervention are chosen on the basis of being named as a friend/alter of a randomly selected individual
|
Experimental: Nominated-Vitamin
nominated by random, exposure to vitamin use
|
"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
Other Names:
"Seed" individuals for starting intervention are chosen on the basis of being named as a friend/alter of a randomly selected individual
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Intervention Spread
Time Frame: October 2012
|
Use of health product among community members will be tracked.
|
October 2012
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Nicholas A Christakis, MD, PhD, Yale University
- Study Director: Thomas Keegan, PhD, Yale University
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Lempira_Phase2
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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