We propose a study, the Young Men's Affiliation Project (YMAP), to advance the utility of social network analysis by introducing a new way of addressing fundamental questions about social networks in relation to health-related behavior. We apply novel two-mode network methodologies to study the risk and health venue- based affiliation networks of younger men who have sex with men (YMSM) ages 16-29 and their relation to the transmission of human immunodeficiency virus (HIV) and sexually transmitted infections (STIs). The utility of social network analysis for understanding how infectious diseases are spread through risk networks based on sexual or drug use behaviors has been demonstrated. However, social network analysis has only rarely been utilized for investigating how affiliation with risk spaces, where HIV risk behavior can take place or health spaces, where HIV protective behaviors are promoted, contributes to disease transmission or health behavior more generally. Complex and potentially competing venue-based affiliation patterns, involving both risk and health venues may create networks with competing influences, some of which may contribute to risk and others to health; this dynamic is poorly understood, but reflects critical points for intervention. The purpose of YMAP is to investigate the HIV/STI risk and protective behaviors associated with complex webs of social networks created by YMSM's venue-based affiliations. YMAP will investigate and describe network influences on individuals' behavior (i.e., venue affiliation leads to behavior), as well as selective affiliation with venues based on behavioral homophily (i.e., YMSM with similar behaviors leads to venue affiliation).
Our specific aims are to: 1) Identify venues where social interaction among YMSM occurs; create venue categories (i.e., risk, health, or both) considering their individual characteristics;2) Determine network influences on HIV/STI risk/protective behavior through risk and health venue affiliation and compare them by geographic location; 3) Investigate selective affiliation with venues based on similarity in HIV/STI risk and protective behaviors; and 4) Develop longitudinal two-mode network methodology to explore the dynamics of venue affiliation. The study will be implemented using a mixed method design, including qualitative field research, longitudinal quantitative data collection, and novel social network analyses. A racially and ethnically diverse sample of 700 YMSM will be recruited using respondent driven sampling in Houston and Chicago. YMAP will introduce new approaches to measuring affiliation-based network influence, structural centrality in affiliation networks, and estimating network configurations relating to behavior using two-mode exponential random graph modeling. Furthermore, the dynamics of affiliation networks in relation to HIV/STI risk/protective behaviors will be explored in two- wave of longitudinal data. YMAP responds directly to the PAR by addressing fundamental questions about social networks in relation to health and behavior, and to develop innovative methodologies to facilitate, improve, and expand the capability of social network analysis.

Public Health Relevance

Younger men who have sex with men (YMSM) are at increased risk of HIV and STIs in the United States. The goal of the proposed longitudinal network study is to investigate the complex interactions between YMSM and both preventive health venues and risk venues to gain a deep understanding of the sometimes conflicting influences and complex interactions that may also provide risk and protection in the same venue. Using two- mode 'affiliation' social network analysis, the proposed study has potential to advance and expand the utility of social network analysis for understanding and addressing public health issues, which will provide new directions in developing venue-based network interventions and modify individual level interventions targeting those most at risk of HIV/STI infection.

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Research Project (R01)
Project #
5R01MH100021-05
Application #
9228399
Study Section
Special Emphasis Panel (ZRG1-RPHB-A (51)R)
Program Officer
Allison, Susannah
Project Start
2013-04-01
Project End
2018-02-28
Budget Start
2017-03-01
Budget End
2018-02-28
Support Year
5
Fiscal Year
2017
Total Cost
$270,319
Indirect Cost
$55,628
Name
University of Texas Health Science Center Houston
Department
Psychology
Type
Schools of Public Health
DUNS #
800771594
City
Houston
State
TX
Country
United States
Zip Code
77030
Fujimoto, Kayo; Cao, Ming; Kuhns, Lisa M et al. (2018) Statistical adjustment of network degree in respondent-driven sampling estimators: venue attendance as a proxy for network size among young MSM. Soc Networks 54:118-131
Behler, Rachel L; Cornwell, Benjamin T; Schneider, John A (2018) Patterns of Social Affiliations and Healthcare Engagement Among Young, Black, Men Who Have Sex With Men. AIDS Behav 22:806-818
Fujimoto, Kayo; Flash, Charlene A; Kuhns, Lisa M et al. (2018) Social networks as drivers of syphilis and HIV infection among young men who have sex with men. Sex Transm Infect 94:365-371
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Fujimoto, Kayo; Turner, Rolf; Kuhns, Lisa M et al. (2017) Network Centrality and Geographical Concentration of Social and Service Venues that Serve Young Men Who Have Sex with Men. AIDS Behav 21:3578-3589
Friedman, Samuel R; Pouget, Enrique R; Sandoval, Milagros et al. (2017) Interpersonal Attacks on the Dignity of Members of HIV Key Populations: A Descriptive and Exploratory Study. AIDS Behav 21:2561-2578

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