Number of non-Hispanic Black and White participants (N = 7,393) and number of partners reported (N = 13,634) in four studies of men who have sex with men in the United States, by study, participant age group and participant race/ethnicity.

Note: Percentages for the total row are row percentages across studies (e.g., percentage of enrolled participants from the BOPR study out of all enrolled participants). The remaining percentages in the table are column percentages within study (e.g., percentage of partners reported by Black MSM aged 18–19 out of all partners reported in a given study).
Number of non-Hispanic Black and White participants (N = 7,393) and number of partners reported (N = 13,634) in four studies of men who have sex with men in the United States, by study, participant age group and participant race/ethnicity.