title: High-risk behaviors among men who have sex with men in 6 US cities: baseline data from the EXPLORE Study.
abstract: OBJECTIVE
  We describe the prevalence of risk behaviors at baseline among men who have sex with men (MSM) who were enrolled in a randomized behavioral intervention trial conducted in 6 US cities.
  
  
  METHODS
  Data analyses involved MSM who were negative for HIV antibodies and who reported having engaged in anal sex with 1 or more partners in the previous year.
  
  
  RESULTS
  Among 4295 men, 48.0% and 54.9%, respectively, reported unprotected receptive and insertive anal sex in the previous 6 months. Unprotected sex was significantly more likely with 1 primary partner or multiple partners than with 1 nonprimary partner. Drug and alcohol use were significantly associated with unprotected anal sex.
  
  
  CONCLUSIONS
  Our findings support the continued need for effective intervention strategies for MSM that address relationship status, serostatus of partners, and drug and alcohol use.
authors.affiliation: New York Blood Center, New York, NY 10021, USA. beryl_koblin@nybc.org
authors.forename: Beryl A
authors.initials: BA
authors.lastname: Koblin
authors.forename: Margaret A
authors.initials: MA
authors.lastname: Chesney
authors.forename: Marla J
authors.initials: MJ
authors.lastname: Husnik
authors.forename: Sam
authors.initials: S
authors.lastname: Bozeman
authors.forename: Connie L
authors.initials: CL
authors.lastname: Celum
authors.forename: Susan
authors.initials: S
authors.lastname: Buchbinder
authors.forename: Kenneth
authors.initials: K
authors.lastname: Mayer
authors.forename: David
authors.initials: D
authors.lastname: McKirnan
authors.forename: Franklyn N
authors.initials: FN
authors.lastname: Judson
authors.forename: Yijian
authors.initials: Y
authors.lastname: Huang
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Coates
mesh_terms: D000293:Adolescent; D000328:Adult; D000907:Antibodies, Bacterial / Q000235:genetics; D001294:Attitude to Health; D035841:Behavioral Research; D002947:Cities; D004797:Enzyme-Linked Immunosorbent Assay; D006069:Gonorrhea / Q000235:genetics / Q000517:prevention & control* / Q000523:psychology; D015483:HIV Antibodies / Q000097:blood; D015658:HIV Infections / Q000276:immunology / Q000517:prevention & control* / Q000523:psychology; D018451:Homosexuality, Male / Q000523:psychology*; D006801:Humans; D022521:Ligase Chain Reaction; D008297:Male; D012309:Risk-Taking; D021841:Safe Sex / Q000523:psychology* / Q000706:statistics & numerical data; D012747:Sexual Partners; D012959:Socioeconomic Factors; D019966:Substance-Related Disorders / Q000150:complications / Q000453:epidemiology; D014481:United States; D014504:Urban Health
chemical_list: D000907:Antibodies, Bacterial; D015483:HIV Antibodies