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. 2013 Mar 1;62(3):329-33.
doi: 10.1097/QAI.0b013e31827e5f8c.

Racial differences in same-race partnering and the effects of sexual partnership characteristics on HIV Risk in MSM: a prospective sexual diary study

Michael E Newcomb  1 , Brian Mustanski
Affiliations

Racial differences in same-race partnering and the effects of sexual partnership characteristics on HIV Risk in MSM: a prospective sexual diary study

Michael E Newcomb et al. J Acquir Immune Defic Syndr. .

Abstract

Background: Men who have sex with men (MSM) account for more than half of new HIV infections each year, and young black MSM experience the highest incidence rates. Black MSM have not been found to engage in more HIV risk behaviors, and it has been proposed that sexual network factors (racially homophilous networks) and partnership characteristics (influence of older partners and familiarity with partners) may help account for this disparity.

Methods: One hundred forty-three ethnically diverse MSM were enrolled in an online prospective diary study of sexual behavior. Participants completed weekly diaries of sexual encounters and associated situational factors for 12 weeks. All analyses were conducted with Hierarchical Linear Modeling software.

Results: Black MSM reported significantly less unprotected sex than other groups and were the most racially homophilous group in terms of sexual partnerships. Having older sexual partners and familiarity with partners were both associated with increased odds of sexual risk in black MSM only. A 3-way interaction between participant age, participant race, and sexual partner age revealed a strong association between having older partners and odds of sexual risk for young black MSM, and a strong association between having younger partners and sexual risk for older non-black MSM.

Conclusions: Findings expand upon previous theory and cross-sectional research. Results indicate that some of the driving forces behind the disproportionate HIV incidence in black MSM may be the greater likelihood of racially homophilous sexual networks combined with the stronger influence of sexual partner age and familiarity with partners on condom use.

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Figures

Figure 1
Figure 1. Three-Way Interaction Between Participant Race, Participant Age, and Sexual Partner Age in Predicting Odds of Unprotected Anal or Vaginal Intercourse
*NOTE: Age x Race x Partner Age interaction is illustrated by splitting participants into four groups. “Younger” and “older” age groups were created by averaging the lower and upper quartiles of participant age. This is done solely for illustrative purposes. Sexual partner age values were −3 = 10+ years younger, −2 = 5–10 years younger, −1 = 1–4 years younger, 0 = about same age as participant, 1 = 1–4 years older, 2 = 5–10 years older, and 3 = 10+ years older.
Figure 2
Figure 2. Moderating Effect of Participant Race on the Association Between the Number of Previous Sexual Encounters with a Partner and Odds of Unprotected Anal or Vaginal Intercourse
*Note: Number of previous encounters with partner was winsorized at three standard deviations from the mean to reduce the influence of outliers.
See this image and copyright information in PMC

References

    1. CDC. HIV in the United States. United States Department of Health and Human Services; 2011. - PubMed
    1. CDC. HIV and AIDS among gay, bisexual and other men who have sex with men (MSM) United States Department of Health and Human Services; 2010.
    1. Millett GA, Flores SA, Peterson JL, Bakeman R. Explaining disparities in HIV infection among black and white men who have sex with men: a meta-analysis of HIV risk behaviors. AIDS. 2007 Oct 1;21(15):2083–2091. - PubMed
    1. Rosenberger JG, Reece M, Schick V, et al. Condom Use during Most Recent Anal Intercourse Event among a U.S. Sample of Men Who Have Sex with Men. J Sex Med. 2012 Feb 21; - PubMed
    1. Clerkin EM, Newcomb ME, Mustanski B. Unpacking the racial disparity in HIV rates: the effect of race on risky sexual behavior among Black young men who have sex with men (YMSM) J Behav Med. 2011 Aug;34(4):237–243. - PubMed

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