Gay Mental Health
In a study of sexual behavior in homosexuals and heterosexuals, the researchers found that of gay and bisexual men, 24% had one male partner in their lifetime, 45% had 2-4 male partners, 13% had 5-9 male partners, and 18% had 10 or more sexual partners, which produces a mean of less than 6 partners... In a parallel study, a random sample of primarily straight men (n=3111 males who had had vaginal intercourse; of the total sample of n=3224 males, only 2.3% had indicated having had sex with both men and women), the mean number of sexual partners was 7.3, with 28.2% having 1-3 partners, and 23.3% having greater than 19 partners (Billy). This data indicates that gay men may have fewer number of sexual partners than heterosexuals...
A third major study, by Laumann, appears on the surface to indicate that gay men do have many more sexual partners than heterosexual men. However, a more extensive analysis of the data gives a more balanced perspective. Laumann fails to explore the radically skewed nature of the data. Typically this indicates that the mean, the statistic presented by Laumann, may not be the best measure to report. A further analysis of the GSS data (on which Laumann based his results) indicates that the median (50th percentile) number of sexual partners for heterosexuals is five and for homosexuals is six (
http://www.jeramyt.org/gss/partners.html). The discrepancy between the mean and median is indicative of a small sub-population of gay males who tend towards high rates of sexual partners, skewing the mean, while the majority of gay men tend to have rates about the same as heterosexual males.