PMID: 15480115Oct 14, 2004

Prevalence and risk behaviors for chlamydial infection in a population-based study of female adolescents in Brazil

Sexually Transmitted Diseases
Angélica Espinosa MirandaKimberly Page-Shafer


Adolescents are vulnerable to sexually transmitted infections (STIs) and unplanned pregnancy. Prevention measures and assistance are of significant public health importance in this population. The objective of this study was to identify demographic, behavioral, and clinical factors for STIs and to determine the prevalence of Chlamydia trachomatis infection (CT) among female adolescents in Vitória, Brazil. We performed a cross-sectional study among female adolescents (15-19 years) served by the Health Family Program. Participants were screened for CT and Neisseria gonorrhoeae (GC) using ligase chain reaction applied to urine and answered a face-to-face questionnaire to assess demographic, behavioral, and clinical factors. All participants and their parents signed the informed consent. Four hundred sixty-four young women were sampled. The prevalence of CT was 8.9% (95% confidence interval [CI], 6.5-11.9%) overall. Among sexually active women, CT and gonorrhea prevalence were 12.2 (95% CI, 9.4-17.0%) and 1.9% (95% CI, 1.1-2.7%), respectively. Previously diagnosed STI was reported by 12.8%. Women who reported regular condom use and having condoms at home were significantly less likely to have CT, and having never purchased condoms ...Continue Reading


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Related Concepts

Adolescent Behavior
Chlamydia Infections
Prevalence Studies
Population Surveillance

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