title: Estimating population distribution and HIV prevalence among homosexual and bisexual men.
abstract: OBJECTIVE
  To estimate the extent of the homosexual and bisexual male population in inner Sydney and HIV prevalence within this population.
  
  
  METHODS
  Data from the 2000/2001 Sydney Gay Community Periodic Survey (SGCPS) and the Australian Study of Health and Relationships were used.
  
  
  RESULTS
  A re-analysis of responses from men in some inner east and inner west postcode areas of Sydney indicated that: the proportion of men who identified as homosexual or bisexual ranged from 4.4% to 48.1%; from 9.8% to 51.5% of men reported same-sex experiences during their lifetime; and 12.9% to 52.8% of men had ever experienced feelings of same-sex attraction. HIV prevalence among respondents to the SGCPS in these same areas varied from 9.1% to 21.3%.
  
  
  CONCLUSIONS
  These findings indicate elevated proportions of men with same-sex identity, experience or attraction living in these inner Sydney locations compared with other geographic areas and illustrate how gay communities cluster.
authors.affiliation: National Centre in HIV Epidemiology and Clinical Research, University of New South Wales, Sydney, NSW 2052, Australia.
authors.forename: Daniel
authors.initials: D
authors.lastname: Madeddu
authors.forename: Andrew
authors.initials: A
authors.lastname: Grulich
authors.forename: Juliet
authors.initials: J
authors.lastname: Richters
authors.forename: Jason
authors.initials: J
authors.lastname: Ferris
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Grierson
authors.forename: Anthony
authors.initials: A
authors.lastname: Smith
authors.forename: Brent
authors.initials: B
authors.lastname: Allan
authors.forename: Garrett
authors.initials: G
authors.lastname: Prestage
mesh_terms: D000328:Adult; D001727:Bisexuality / Q000706:statistics & numerical data*; D015658:HIV Infections / Q000453:epidemiology*; D015528:HIV Seroprevalence; D018451:Homosexuality, Male / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009517:New South Wales / Q000453:epidemiology; D015995:Prevalence; D012725:Sexual Behavior / Q000706:statistics & numerical data; D011795:Surveys and Questionnaires; D014505:Urban Population / Q000706:statistics & numerical data