title: Estimating populations of men who have sex with men in the southern United States.
abstract: Population estimates of men who have sex with men (MSM) by state and race/ethnicity are lacking, hampering effective HIV epidemic monitoring and targeting of outreach and prevention efforts. We created three models to estimate the proportion and number of adult males who are MSM in 17 southern states. Model A used state-specific census data stratified by rural/suburban/urban area and national estimates of the percentage MSM in corresponding areas. Model B used a national estimate of the percentage MSM and state-specific household census data. Model C partitioned the statewide estimates by race/ethnicity. Statewide Models A and B estimates of the percentages MSM were strongly correlated (r = 0.74; r-squared = 0.55; p < 0.001) and had similar means (5.82% and 5.88%, respectively) and medians (5.5% and 5.2%, respectively). The estimated percentage MSM in the South was 6.0% (range 3.6-13.2%; median, 5.4%). The combined estimated number of MSM was 2.4 million, including 1,656,500 (69%) whites, 339,400 (14%) blacks, 368,800 (15%) Hispanics, 34,600 (1.4%) Asian/Pacific Islanders, 7,700 (0.3%) American Indians/Alaska Natives, and 11,000 (0.5%) others. The estimates showed considerable variability in state-specific racial/ethnic percentages MSM. MSM population estimates enable better assessment of community vulnerability, HIV/AIDS surveillance, and allocation of resources. Data availability and computational ease of our models suggest other states could similarly estimate their MSM populations.
authors.affiliation: Florida Department of Health, Bureau of HIV/AIDS, Bin A09, Tallahassee, FL, 32399-1715, USA. spencer_lieb@doh.state.fl.us
authors.forename: Spencer
authors.initials: S
authors.lastname: Lieb
authors.forename: Daniel R
authors.initials: DR
authors.lastname: Thompson
authors.forename: Shyam
authors.initials: S
authors.lastname: Misra
authors.forename: Gary J
authors.initials: GJ
authors.lastname: Gates
authors.forename: Wayne A
authors.initials: WA
authors.lastname: Duffus
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Fallon
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Liberti
authors.forename: Evelyn M
authors.initials: EM
authors.lastname: Foust
authors.forename: Robert M
authors.initials: RM
authors.lastname: Malow
mesh_terms: D000328:Adult; D018451:Homosexuality, Male / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D015233:Models, Statistical; D011159:Population Surveillance; D044469:Racial Groups / Q000706:statistics & numerical data; D012424:Rural Population / Q000706:statistics & numerical data; D015144:Southeastern United States / Q000453:epidemiology; D013383:Suburban Population / Q000706:statistics & numerical data; D014505:Urban Population / Q000706:statistics & numerical data