Anyway, filtering down the results of the last few of hours of reading and checking, here are the best results I could find on the relative risks of HIV to gay men* (bearing in mind we saw in this thread that women globally make up about 49.5% of the population and 52% of HIV prevalence, giving them a global representation of about parity, but just a smidge over at 1.05):
https://www.unaids.org/en/resources/fact-sheet The risk of acquiring HIV is:
27 times higher among men who have sex with men.
23 times higher among people who inject drugs.
13 times higher for female sex workers.
13 times higher for transgender women.
This page has a detailed geographical breakdown of estimated HIV rates for MSM in a table down the right side:
https://en.wikipedia.org/wiki/HIV_and_m ... x_with_menThis page had a wealth of useful facts, figures and graphs, although not a direct answer that I could see:
https://ourworldindata.org/hiv-aidsThis was a decent page about the “promiscuity” distribution of gay people and straights focusing on a GINI coefficient and graphs:
https://contexts.org/blog/an-unequal-di ... straights/
This debunking myths about gay men page mentioned averages for number of partners:
https://www.lehmiller.com/blog/2012/9/2 ... ience.html MYTH #1: Gay men sleep around a lot more than straight men. Although some politicians and anti-gay groups want you to believe that gay men are a bunch of “horny sluts,” there is good reason not to buy into this stereotype. First, although gay men typically report a higher number of partners than heterosexual men on average, we need to look at the median (or 50th percentile) before drawing any conclusions because averages can be easily distorted by a few extreme responses (and, indeed, there is a small number of gay men who accumulate an extremely large number of partners). For instance, if we look at the median number of sex partners in the National Health and Social Life Survey (a nationally representative sex survey conducted in the United States), we see that gay men only outpace heterosexual men by one [1]. Other studies have reported similar findings. Thus, the majority of gay and heterosexual men are actually pretty similar in this regard.
Second, it is important to note that gay men are no hornier than their heterosexual counterparts. Research has found that the sex drives of gay and heterosexual men are equally high [2]. This tells us that any difference in number of partners is not due to gay men having increased sexual urges; rather, it is probably a reflection of the fact that men are generally more interested in casual sex than are women. Thus, heterosexual men may lag behind slightly because they do not have as many opportunities—not because they are any less interested in sex.
And wiki had something useful to say too:
https://en.wikipedia.org/wiki/Promiscuity A 1989 study found having over 100 partners to be present though rare among homosexual males.[21] General Social Survey data indicates that the distribution of partner numbers among men who have sex exclusively with men and men who have sex exclusively with women is similar, but that differences appear in the proportion of those with very high number of partners, which is larger among gay men, but that in any case makes up a small minority for both groups.[22] OkCupid discovered a similar pattern in the data collected from its vast number of users, published in 2010: the median number of self-reported lifetime sexual partners for both gay and straight men was six; however, a small minority of gay men (2%) were having a disproportionate share of all self-reported gay sex (23%).[23] According to updated OkCupid data published in 2014, gay male users self-reported a lower median of lifetime sex partners than straight male users: four for gay men and five for straight men.[24] A 2007 study reported that two large population surveys found "the majority of gay men had similar numbers of unprotected sexual partners annually as straight men and women."[25][26]
The earlier OK cupid data cited in the wiki seems to go to a dead link, but this page seems to have reproduced the survey findings:
https://gizmodo.com/data-backed-shocker ... me-5661086I will just emphasize the very last part I marked in red there:
"According to updated OkCupid data published in 2014, gay male users self-reported a lower median of lifetime sex partners than straight male users: four for gay men and five for straight men"This finding is that gay men might actually have less partners, by median average, than straight men. Although there were more sources claiming that gay men tended to have more in what I read there was this minority but significant view/finding in the opposite direction in a number of places. Which somewhat reinforces where I weighed in on this in
#22 - it is a possibility that promiscuity plays a role in the spread of STDs and HIV in MSM, but it's not actually completely clear that it does or that that role is all that extensive if so.
As for the rate of HIV in straight women being higher than in gay men, that's going to be completely untrue - globally the
incidence** rate in MSM is about 26 times higher than the rate in women. MSM is not exactly the same category as gay men and women is not exactly the same category as straight women, but they are such dominant subcategories the estimate is going to be as good as you can get.
*Noting that the statistics actually pertain to the category of MSM that is used in study.
*It is possible the original claim was alluding imprecisely to prevalence, not incidence, but we can hardly ask now. It is unlikely to change the finding in any meaningful respect anyway.
by 
