title: HIV and syphilis seroprevalence among clients with sexually transmitted diseases attending a walk-in clinic at Cook County Hospital.
abstract: OBJECTIVE
  To determine the HIV and syphilis seroprevalence in a patients with suspected sexually transmitted diseases at an urban walk-in clinic.
  
  
  METHODS
  Between January and November 1991, 515 patients with suspected sexually transmitted diseases were simultaneously tested for syphilis and HIV antibodies.
  
  
  RESULTS
  The cohort studied was young (85% were < 40 years), 81% were black, 11% Hispanic, and 71% reported heterosexual contact as the primary HIV risk factor. HIV seroprevalence was 8% (41/515), (95% confidence interval [95% CI], 5.66%, 10.34%). Syphilis seroprevalence rate was 21.4% (110/515), (95% CI 17.86%, 24.94%). Syphilis seroprevalence in those who were HIV positive was 31.7% (13/41), (95% CI 17.46%, 45.94%) as compared to 5.9% (28/574), (95% CI 3.78%, 8.02%) in those who were HIV negative.
  
  
  CONCLUSIONS
  The HIV seroprevalence among patients with sexually transmitted diseases who are screened for syphilis was disturbingly high. Patients who were seropositive for HIV had a significantly higher rate of syphilis than those who were HIV negative.
authors.affiliation: Department of Medicine, Cook County Hospital, Chicago, Illinois 60612, USA.
authors.forename: D A
authors.initials: DA
authors.lastname: Ansell
authors.forename: T C
authors.initials: TC
authors.lastname: Hu
authors.forename: M
authors.initials: M
authors.lastname: Straus
authors.forename: M
authors.initials: M
authors.lastname: Cohen
authors.forename: R
authors.initials: R
authors.lastname: Sherer
mesh_terms: D000328:Adult; D002641:Chicago; D005260:Female; D015658:HIV Infections / Q000150:complications*; D015528:HIV Seroprevalence; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D010044:Outpatient Clinics, Hospital; D015995:Prevalence; D012307:Risk Factors; D016036:Seroepidemiologic Studies; D012749:Sexually Transmitted Diseases / Q000150:complications*; D013587:Syphilis / Q000150:complications*