title: Sexually transmitted disease clinic clients at risk for subsequent gonorrhea and chlamydia infections: possible 'core' transmitters.
abstract: BACKGROUND
  From an sexually transmitted disease (STD) intervention perspective, developing a practical way to identify persons in core transmitter groups has been difficult. However, persons who have repeated STD infections may be in such groups.
  
  
  OBJECTIVE
  To evaluate a self-administered risk assessment approach that would identify STD clinic clients who were at an increased risk of being involved in gonorrhea (GC) or chlamydia (CT) transmission in the subsequent year.
  
  
  METHODS
  Prospective cohort of consecutive STD clinic clients with a 1-year follow-up period.
  
  
  RESULTS
  During a 6-month period in 1995, 2576 STD clinic clients in San Diego completed a risk assessment. Of those clients, 204 (7.9%) had a subsequent STD and 79 (3.1%) had a subsequent GC or CT infection during the 1-year follow-up period. The strongest predictor of a subsequent GC/CT was having a recent history or current clinic visit diagnosis of GC or CT (6.1% subsequent GC/CT rate). The more past episodes of GC or CT, the higher the subsequent GC/CT rate. Unsafe sexual behavior had little effect on further increasing subsequent GC/CT risk.
  
  
  CONCLUSIONS
  STD clinic clients with a recent history of GC or CT and a high risk of subsequent GC/CT may be core transmitters who could likely benefit from risk reduction, periodic screening for GC/CT, symptom recognition counseling, and preventive treatment-the essential elements of STD-prevention case management.
authors.affiliation: Centers for Disease Control and Prevention, Atlanta, Georgia, USA. rgunnxhe@co.san-diego.ca.us
authors.forename: R A
authors.initials: RA
authors.lastname: Gunn
authors.forename: S
authors.initials: S
authors.lastname: Fitzgerald
authors.forename: S O
authors.initials: SO
authors.lastname: Aral
mesh_terms: D002140:California / Q000453:epidemiology; D002690:Chlamydia Infections / Q000175:diagnosis* / Q000453:epidemiology* / Q000517:prevention & control; D015331:Cohort Studies; D005260:Female; D006069:Gonorrhea / Q000175:diagnosis* / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D008297:Male; D008499:Medical Records; D010044:Outpatient Clinics, Hospital; D011237:Predictive Value of Tests; D011446:Prospective Studies; D018570:Risk Assessment; D055502:Secondary Prevention; D012749:Sexually Transmitted Diseases / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control; D011795:Surveys and Questionnaires