# Using Smart Phones to Understand the Link Between Social and Geographical Context and HIV Risk Behavior Among MSM

> **NIH NIH R01** · YALE UNIVERSITY · 2020 · $747,359

## Abstract

Research Summary
This study explores novel methods to assess how geographic and social contexts create unique profiles of risk
for emerging adult HIV-negative men who have sex with men (MSM). HIV risk behaviors (sexual risk,
substance use) are heavily influenced by geographic and social context of the neighborhoods that people live
and frequent (e.g., crime; poverty; density of liquor stores, parks, churches, clinics). However, most studies
that assess geographic influence, focus on a fixed location (e.g., home). However, young MSM do not stay in
one place, and travel to different places to meet people and engage in risk behavior (e.g., bars, parties, sex
clubs). There is a need to take a more dynamic and complex approach when trying to understand the
geographic and social contexts of HIV risk. This proposal explores novel and innovative methods of
assessing the influence of social places and their impact on risk behavior (e.g., sexual risk, substance use)
among emerging adult MSM. To understand these mechanisms we will use a unique combination of
geographic data captured through GPS monitoring and monitoring of partner-seeking app use (e.g., Grindr),
and context-aware experience sampling using mobile technology that has participants answer brief
questionnaires about their geographic and social environment triggered by GPS location or use of partner-
seeking apps. In this application we propose to enroll 400 emerging adults MSM (ages 18-29) and track their
GPS coordinates and use of partner-seeking apps for 2 months to create activity space maps of where they go
and where they engage in risk behavior. The GPS coordinates from their activity space maps will be
programmed in their cell phone and then we will conduct context-aware experience sampling assessments
daily for 30 days (triggered by the GPS location of activity spaces or the use of a partner-seeking app).
Context-aware experience questions will assess interpersonal interactions with social network members,
location environment, drug use, alcohol use, and sexual risk. Results will provide tremendous insight into
MSM's interpersonal interactions in social settings that will serve as the foundation for developing ecological
momentary interventions (which can deliver tailored intervention components in real time contexts and
situations) to reduce HIV risk and substance use of emerging adult MSM. Ecological momentary interventions
developed using data from this study would allow us to provide precision health approaches through tailored
interventions in real time when participants were at highest risk and in most need of support. This study
provides us with unique data on interpersonal interactions in places that are socially meaningful that can help
us improve the social and environmental contexts that put emerging adult MSM at risk.

## Key facts

- **NIH application ID:** 9932424
- **Project number:** 5R01HD092185-04
- **Recipient organization:** YALE UNIVERSITY
- **Principal Investigator:** NATHAN B HANSEN
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $747,359
- **Award type:** 5
- **Project period:** 2017-09-01 → 2022-04-30

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/9932424

## Citation

> US National Institutes of Health, RePORTER application 9932424, Using Smart Phones to Understand the Link Between Social and Geographical Context and HIV Risk Behavior Among MSM (5R01HD092185-04). Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/grant/nih/9932424. Licensed CC0.

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