title: [Chlamydia trachomatis--pattern of testing and prevalence among young women].
abstract: BACKGROUND
  The purpose of this study was to explore pattern of testing and prevalence of C trachomatis among 16 to 19 year old Norwegian high school girls.
  
  
  METHODS
  The study subjects were 827 girls who participated in a study of oral contraceptives prescribed by public health nurses. The first consultation was an interview about sexual behaviour and other characteristics. The participants were encouraged to test for C trachomatis with their general practitioners. We explored characteristics of those tested and predictors of genital C trachomatis infection.
  
  
  RESULTS
  Half of the study population was tested, either before (21%) or during the study period (26%). Girls with risk factors such as change of partner over the last six months, older partner or no regular partner were more likely to be tested than girls with no change of partner or a regular same-age partner. One out of four girls with high-risk behaviour (> or =3 partners) was never tested. The prevalence of infection at first test was 9%. The risk for having a positive test result was three times higher for single girls than for girls with a regular same-age partner.
  
  
  CONCLUSIONS
  Too few young girls were tested for C trachomatis. Encouragement from public health providers had low influence on the pattern of testing. Alternative strategies such as implementation of do-it-yourself tests by urine or vulvovaginal sampling procedures have to be provided as a low-threshold service.
authors.affiliation: Institutt for laboratoriemedisin, kvinne- og barnesykdommer, Norges teknisk-naturvitenskapelige universitet, 7465 Trondheim.
authors.forename: Ragnhild H T
authors.initials: RH
authors.lastname: Strand
authors.forename: Finn Egil
authors.initials: FE
authors.lastname: Skjeldestad
authors.forename: Torbjørn
authors.initials: T
authors.lastname: Øvreness
authors.forename: Svein Arne
authors.initials: SA
authors.lastname: Nordbø
mesh_terms: D000293:Adolescent; D000328:Adult; D015373:Bacterial Typing Techniques; D002690:Chlamydia Infections / Q000175:diagnosis / Q000453:epidemiology*; D002692:Chlamydia trachomatis / Q000302:isolation & purification*; D005260:Female; D015438:Health Behavior; D006801:Humans; D009664:Norway / Q000453:epidemiology; D015995:Prevalence; D011933:Reagent Kits, Diagnostic; D012725:Sexual Behavior; D011795:Surveys and Questionnaires
chemical_list: D011933:Reagent Kits, Diagnostic