“…Studies have shown that older MSM are more likely to be infected than younger MSM (8, 10, 11, 15, 17, 18, 21, 22), although incidence seems higher among younger MSM (7). HIV infection also seems to be associated with indicators of social vulnerability, including lower levels of education (9, 10), being unemployed (5), and low income (11). Behavioral risk factors for HIV infection in sub-Saharan MSM include having engaged in receptive anal intercourse (6, 8, 9, 11), number of sexual partners (15, 16), having been paid for sex (12, 16, 18, 21) (while having paid for sex seems to be a protective factor (9)), and having experienced violence (5, 17, 22).…”