Reducing Obesity Using Social Ties Program (ROBUST)

Phillips E, Potter C, Poole J, Lewis A, Nahid M, Christos P, Hootman K, Winston G, de la Haye K

Protocol Summary

This study investigates how positive and negative social network processes influence weight loss among individuals participating in a 24-week, evidence-based lifestyle intervention modeled after the Diabetes Prevention Program. The protocol provides an example of utilizing the narrative interface as a visualization tool for a participant's social network, displaying alter edges, group and individual alter attribute variables, and allowing for dynamic repositioning of nodes to elicit qualitative data about the network.

Citation

Phillips, E., Potter, C., Poole, J., Lewis, A., Nahid, M., Christos, P., Hootman, K., Winston, G., & de la Haye, K. (2025). Reducing Obesity Using Social Ties (ROBUST): Protocol for a randomized control trial of a social network lifestyle intervention. PLoS ONE, 20(4), e0318990. https://doi.org/10.1371/journal.pone.0318990

Study PI(s)

PI: Erica Phillips

Grant Number

R01DK135949

Protocol Contact

Kayla de la Haye, delahaye@usc.edu

Edge Generation Methodology

sociogram, dyad census

Field(s)

Public health, Medicine

Population

Black and Hispanic adults with obesity

Clinical Trials Registration

https://clinicaltrials.gov/study/NCT06335810

Date Added

Oct 22, 2025

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