title: [Use of contraceptives among adolescent girls and its relation with the Chlamydia trachomatis infection].
abstract: OBJECTIVE
  Study aimed to evaluate the age of early sexual intercourse of adolescent girls and peculiarities of use of contraceptives. Establishing the risk factors for Chlamydia trachomatis infection was one of study objectives.
  
  
  METHODS
  The "Questionnaire on Sexual Health Behavior" was developed by the authors. Anonymous questionnaire survey was conducted among 487 adolescent girls aged 15-19 years at vocational training schools and general education secondary schools in Kaunas.
  
  
  RESULTS
  Out of the respondent girls, 29.9% were exposed for the sexual intercourse at the age of 15 years or earlier. Only 30.0% of adolescent girls reported use of contraceptives during their last sexual intercourse. Majority of respondent girls has reported use of condoms (87.7%). One third of respondents (33.1%) used method of interrupted sexual intercourse, 22.3% used hormonal contraceptive pills, 13.0% reported use the method of calculation of fertility days, and 6.5%--local chemical contraceptives.
  
  
  CONCLUSIONS
  It was established that significant part of adolescent girls have had their first sexual intercourse before age of 15 years. Adolescent girls have indicated poor knowledge and irregular use of contraceptives. Respondent girls, who were infected by Chlamydia trachomatis reported poor attitudes and knowledge concerning the risky sexual behavior.
authors.affiliation: Clinic of Obstetrics and Gynecology, Kaunas University of Medicine Hospital, Eiveniu 2, 50010 Kaunas, Lithuania.
authors.forename: Ingrida
authors.initials: I
authors.lastname: Baseviciene
authors.forename: Linas
authors.initials: L
authors.lastname: Sumskas
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D000328:Adult; D000367:Age Factors; D002690:Chlamydia Infections / Q000453:epidemiology* / Q000517:prevention & control; D002692:Chlamydia trachomatis; D003268:Contraception Behavior; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012307:Risk Factors; D012309:Risk-Taking; D012725:Sexual Behavior; D011795:Surveys and Questionnaires