title: HIV infection in homosexual and bisexual men 18 to 29 years of age: the San Francisco Young Men's Health Study.
abstract: OBJECTIVE
  Recent studies suggest very high human immunodeficiency virus (HIV) infection rates in some populations of younger homosexual men, but these studies may represent only particularly high-risk populations. The current study obtained population-based data on the HIV epidemic in young homosexual/bisexual men.
  
  
  METHODS
  A household survey of unmarried men 18 through 29 years of age involved a multistage probability sample of addresses in San Francisco. A follow-up interview and HIV test for men who were HIV negative at baseline were completed; the median follow-up was 8.9 months.
  
  
  RESULTS
  Sixty-eight of 380 homosexual/bisexual men (17.9%) tested HIV seropositive. Sixty-three percent of men reported one or more receptive anal intercourse partners in the previous 12 months, and 41% of those men did not use condoms consistently. The HIV seroincidence rate among those seronegative at first study was 2.6% per year.
  
  
  CONCLUSIONS
  HIV infection rates in young homosexual men in San Francisco are lower than those in the early 1980s; however, the rate of infection in these men, most of whom became sexually active after awareness of AIDS had become widespread, threatens to continue the epidemic in the younger generation at a level not far below that of a decade ago.
authors.affiliation: Division of Epidemiology and Medicine, San Francisco General Hospital, University of California 94143-1347.
authors.forename: D H
authors.initials: DH
authors.lastname: Osmond
authors.forename: K
authors.initials: K
authors.lastname: Page
authors.forename: J
authors.initials: J
authors.lastname: Wiley
authors.forename: K
authors.initials: K
authors.lastname: Garrett
authors.forename: H W
authors.initials: HW
authors.lastname: Sheppard
authors.forename: A R
authors.initials: AR
authors.lastname: Moss
authors.forename: L
authors.initials: L
authors.lastname: Schrager
authors.forename: W
authors.initials: W
authors.lastname: Winkelstein
mesh_terms: D000293:Adolescent; D000328:Adult; D001727:Bisexuality; D015658:HIV Infections / Q000453:epidemiology*; D006679:HIV Seropositivity / Q000453:epidemiology; D018451:Homosexuality, Male; D006801:Humans; D015994:Incidence; D008297:Male; D015995:Prevalence; D012495:San Francisco / Q000453:epidemiology; D012725:Sexual Behavior