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Title

Prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae infection in adolescents in Northern Italy: an observational school-based study.

Authors

Matteelli, Alberto; Capelli, Michela; Sulis, Giorgia; Toninelli, Giuseppe; Carvalho, Anna Cristina C.; Pecorelli, Sergio; Caruso, Arnaldo; Bonfanti, Carlo; Gargiulo, Franco; Donato, Francesco; (on behalf of the Clamigon Study Group); Clamigon Study Group

Abstract

<bold>Background: </bold>We carried out a study to evaluate the prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae genital infections in school-based adolescents in Northern Italy.<bold>Methods: </bold>Systematic screening for C. trachomatis and N. gonorrhoeae genital infection was performed in 13th grade students in the province of Brescia, an industrialized area in Northern Italy. Student filled in a questionnaire on sexual behaviour and provided a urine sample for microbiological testing.<bold>Results: </bold>A total of 2,718 students (mean age: 18.4 years; 59.1% females) provided complete data (62.2% of those eligible). Overall 2,059 students (75.8%) were sexually active (i.e. had had at least one partner), and the mean age at sexual debut was 16.1 years (SD: 1.4). Only 27.5% of the sexually active students reported regular condom use during the previous 6 months, with higher frequency in males than in females (33.8% vs 24.2%). No case of N. gonorrhoeae infection was detected, while C. trachomatis was found in 36 adolescents, with a prevalence of 1.7% (95% CI: 1.2-2.4) among sexually active students, and no statistical difference between females and males (1.9 and 1.4%, respectively). Inconsistent condom use (odds ratio, OR = 5.5) and having had more than one sexual partner during the previous 6 months (OR = 6.8) were associated with an increased risk of Chlamydia infection at multivariate analysis.<bold>Conclusion: </bold>The prevalence of C. trachomatis infection among sexually active adolescents in Northern Italy was low, despite a high proportion of students who engage in risky sexual behaviour. No cases of N. gonorrhoeae infection were identified.

Subjects

ITALY; CHLAMYDIA trachomatis; NEISSERIA gonorrhoeae; DISEASES in teenagers; PUBLIC health; MEDICAL microbiology; COLLEGE students' sexual behavior; MULTIVARIATE analysis; DISEASE risk factors; CHLAMYDIA infections; CONDOMS; GONORRHEA; MEDICAL screening; NEISSERIA; RISK-taking behavior; SCHOOLS; HUMAN sexuality; STUDENTS; DISEASE prevalence; SEXUAL partners

Publication

BMC Public Health, 2016, Vol 16, Issue 1, p1

ISSN

1471-2458

Publication type

Academic Journal

DOI

10.1186/s12889-016-2839-x

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