Soroprevalência e fatores associados à sífilis em população adulta atendida nas unidades de saúde no município de Vitória-ES

Background: There are few studies in population samples on the prevalence of syphilis in Brazil. Objectives: To determine the seroprevalence of syphilis and to identify factors associated with infection in adult patients treated in units of six health regions of the city of Vitória, Espírito Santo. Methods: Cross-sectional study between September 2010 and December 2011. VDRL and two treponemal tests (immunochromatographic test and IgG ELISA) were performed in 1502 subjects. Demographic data, history of STD and behavioral data were collected for each person. Cases with VDRL 1:8 or above, confirmed by a treponemal test were considered as syphilis. Results: Of 1502 enrolled, 47% were men and 53% women. The mean age was 41.63 14.57 years. The prevalence of syphilis was 0.9% (95% CI: 0.4% - 1.3%). Multivariate analysis showed significant association of syphilis with homosexual or bisexual behavior [OR 6.80 95% CI 1.00 to 46.20], history of STD [OR 16.30 95% CI 3.61 to 73.41], use tattooing [OR 6.21 95% CI 1.49 to 25.84] and cocaine use [OR 6.80 95% CI 1.15 to 40.30]. The prevalence of a positive treponemal test was 10.4% (CI 95% 8.9%-11.9), of which 27 had VDRL positive test with titers less than 1:8. Conclusion: The seroprevalence of syphilis in the studied population is similar to that observed in other samples studied in Brazil and confirmed the main associated risk factors. The high prevalence of treponemal positive tests may be due to serological scar of cured previous infections, but can also be associated with cases of primary or late syphilis, not detected by the VDRL ; Introdução: Existem poucos estudos em amostras populacionais sobre a prevalência da sífilis no Brasil. Objetivos: Determinar a soroprevalência de sífilis e identificar fatores associados à infecção em pacientes adultos atendidos nas unidades das seis regiões de saúde do Município de Vitória, Estado do Espírito Santo. Métodos: Estudo transversal realizado entre setembro de 2010 e dezembro de 2011. Foram realizados VDRL e dois testes ...