Sexually transmitted bacterial infections among young women in central western Brazil
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2014
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Background: Studies on sexually transmitted infections in Brazil are done mainly in large metropolises
and screening is available for pregnant women only. We aimed to estimate the prevalence and risk
factors for Chlamydia trachomatis, Neisseria gonorrhoeae, and Treponema pallidum infection among young
non-pregnant women in non-clinical settings in middle-sized cities of Central Brazil.
Methods: A cross-sectional community-based sample of 1072 participants was included. Sexually active
women (64.9%) provided first-catch urine samples for PCR investigation of chlamydial and gonococcal
infection. Syphilis was tested in serum. Univariate analysis investigated risk factors for chlamydial
infection. Multivariate logistic regression included associations with a p-value <0.20.
Results: The mean age of participants was 18 years; 73.2% reported unprotected intercourse, 37.6% were
married/cohabiting, and 5% reported a previous STI. Prevalence rates of C. trachomatis, N. gonorrhoeae,
and T. pallidum were 9.6% (95% confidence interval (CI) 7.4–12.4%), 0.7% (95% CI 0.2–1.9%), and 0.15%
(95% CI 0.0–0.7%), respectively. After adjustments, being <20 years old (adjusted odds ratio (aOR) 1.90,
95% CI 1.07–3.37) and having three or more lifetime sexual partners (aOR 2.57, 95% CI 1.46–4.53) were
associated with the risk for chlamydial infection.
Conclusions: We observed a high prevalence of chlamydial infection and sexual risk behaviors in this
population. These findings are important to guide screening strategies in Brazil.
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Young women, Bacterial sexually transmitted infections, Prevalence, Risk factor, Epidemiology
Citação
LIMA, Yanna Andressa Ramos de; TURCHI, Marília Dalva; FONSECA, Zulmirene Cardoso; GARCIA, Fernanda Lopes Brito; CARDOSO, Fernanda Alves de Brito e; REIS, Mônica Nogueira da Guarda; GUIMARÃES, Eleuse Machado de Britto; ALVES, Rosane Ribeiro Figueiredo; CARVALHO, Nígela Rodrigues; ALVES, Maria de Fátima Costa. Sexually transmitted bacterial infections among young women in Central Western Brazil. International Journal of Infectious Diseases, Amsterdam, v. 25, p. 16-21, 2014.