HIV prevalence among MSMW, compared to MSMO, U.S.

<p>HIV prevalence among MSMW, compared to MSMO, U.S.</p

Flow diagram of included and excluded records.

<p>Flow diagram of included and excluded records.</p

HIV prevalence among MSMW, compared to MSWE, U.S.

<p>HIV prevalence among MSMW, compared to MSWE, U.S.</p

STI and sexual risk behavior differences between MSMW, MSMO, and MSWE.

*<p>All studies included measured any STI rather than individual kinds of STI, except one <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0087139#pone.0087139-Levin1" target="_blank">[42]</a>: for this study, we used data only on human papillomavirus symptoms/diagnosis in these analyses.</p

Population estimates of MSMW and HIV-positive MSMW in the United States.

<p>Population estimates of MSMW and HIV-positive MSMW in the United States.</p