RESUMO
A total of 100 pregnant women were included in this study; 70 of them were symptomatic, complajning mainly of dysuria and/or vaginal discharge, and 30 of them were asymptomatic and were considered as a control group. Cervical samples were taken from 45 women and urethral samples were taken from 55 women and all samples were examined by direct immunofluorescence test and then subjected to culture technique on Hela cells which was taken as a reference method. The prevalence rate for Chlamydia trachomatis was 24.3% among symptomatic women while in the asymptomatic women, it was 10%. This prevalence was significantly related to the presence of dysuria and vaginal discharge together for more than 2 weeks [52.9%], to the presence of endocervical mucopurulent discharge [35.3%], and to the presence of cervicitis and ectopy [75%]. Also the incidence of Chlamydia trachomatis was significantly higher in cervical samples compared to urethral samples. The relations between the chlamydial isolation rate and age, parity, dysuria, vaginal discharge, urethritis and urethral discharge were insignificant. Direct immunofluorescence test had a sensitivity, specifity, positive and negative predictive values of 88.9%, 95.1%, 80% and 97.5%, respectivity