title: Decreased helper T lymphocytes in homosexual men. I. Sexual contact in high-incidence areas for the acquired immunodeficiency syndrome.
abstract: In June 1982, sexual and other behavioral patterns were examined in 245 homosexual men in relationship to T-lymphocyte phenotypes that are characteristic of the acquired immunodeficiency syndrome (AIDS). Mean helper T-cell counts in New York City (579 +/- 32 cells/mm3) and Washington, DC, homosexual men with sexual contacts in areas at high risk (endemic) for AIDS (567 +/- 24 cells/mm3) were significantly lower than in Washington, DC, residents without such contacts (672 +/- 36 cells/mm3, p = 0.04 by analysis of variance). Helper T-cell counts in the Washington men were inversely correlated with a greater number of endemic-area homosexual contacts (p = 0.005), even after adjustment for multiple confounding variables (p = 0.02). The 31 Washington men with more than 15 endemic-area partners had a mean helper T-cell count of 517 +/- 44 cells/mm3, and 12 of those 31 men had helper T-cell counts less than 400 cells/mm3. AIDS patients are known to have a marked reduction in the number and function of helper T-lymphocytes. The data suggest that deficits of helper T lymphocytes can be acquired by homosexual contact with men in cities where AIDS is common. This supports the hypotheses that low helper T-cell counts may be caused by a sexually transmissible agent and that frequent homosexual exposure to residents of high-risk areas for AIDS may be an important means of spread of this agent.
authors.forename: J J
authors.initials: JJ
authors.lastname: Goedert
authors.forename: R J
authors.initials: RJ
authors.lastname: Biggar
authors.forename: D M
authors.initials: DM
authors.lastname: Winn
authors.forename: D L
authors.initials: DL
authors.lastname: Mann
authors.forename: D P
authors.initials: DP
authors.lastname: Byar
authors.forename: D M
authors.initials: DM
authors.lastname: Strong
authors.forename: R A
authors.initials: RA
authors.lastname: DiGioia
authors.forename: R J
authors.initials: RJ
authors.lastname: Grossman
authors.forename: W C
authors.initials: WC
authors.lastname: Sanchez
authors.forename: R G
authors.initials: RG
authors.lastname: Kase
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000097:blood / Q000276:immunology* / Q000635:transmission; D000328:Adult; D004219:District of Columbia; D004812:Epidemiologic Methods; D006716:Homosexuality; D006801:Humans; D007111:Immunity, Cellular; D007165:Immunosuppression Therapy; D008297:Male; D009519:New York City; D009573:Nitrites / Q000506:poisoning; D010641:Phenotype; D012044:Regression Analysis; D012306:Risk; D012725:Sexual Behavior; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
chemical_list: D009573:Nitrites