title: [Chlamydia trachomatis infection in central Norway--testing patterns and prevalence].
abstract: BACKGROUND
  CHLAMYDIA TRACHOMATIS: is the most prevalent sexually transmitted bacterial disease in Norway. The purpose of the present study was to describe testing patterns and prevalence of Chlamydia in a Norwegian county, with special focus on urine-based testing. :
  
  
  METHODS
  Data on all Chlamydia tests 1990 - 2006 for men and women 15 - 59 years old, living in Sør-Trøndelag County, were retrieved from a laboratory database. 243 671 Chlamydia test results were eligible for analysis.
  
  
  RESULTS
  Testing rates were considerably higher for men than for women in all age-groups throughout the study period. Urine-based testing was introduced for men in 2001 and for women in 2004. In 2006, urine-based testing comprised most of the test volume for men (15 - 19 year-olds: 87.9 %, 20 - 24 year-olds: 81.7 %), but far less for women (15 - 19 year-olds: 55.8 %, 20 - 24 year-olds: 26.5 %). The proportion of positive tests was higher for women with a urine-based test than for those with a sample from the cervix (2006: 15 - 19 year-olds: 18.0 % versus 13.5 %, 20 - 24 year-olds: 16.9 % versus 9.6 %).
  
  
  CONCLUSIONS
  Male testing rates have increased after urine-based testing for Chlamydia became an option. Young women delivering urine samples are more often positive than women with cervix samples.
authors: Avdeling for epidemiologi SINTEF Helse 7465 Trondheim. inger.bakken@sintef.no
authors: Inger Johanne
authors: IJ
authors: Bakken
authors: Svein Arne
authors: SA
authors: Nordbø
mesh_terms: D000293:Adolescent; D000328:Adult; D002584:Cervix Uteri / Q000382:microbiology; D002690:Chlamydia Infections / Q000175:diagnosis / Q000453:epidemiology* / Q000652:urine; D002692:Chlamydia trachomatis / Q000302:isolation & purification*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway / Q000453:epidemiology; D015995:Prevalence