Prevalence of bacterial vaginosis in Thai pregnant women with preterm labor in Siriraj hospital.

OBJECTIVE To study the prevalence of bacterial vaginosis (BV) in pregnant women with preterm labor in Siriraj hospital. MATERIAL AND METHOD A cross-sectional study of 158 pregnant women with suspected preterm labor was performed between January and July 2005. The subjects enrolled in the present study were between 28+0 and 36+6 menstrual weeks. BV blue test was performed on the vaginal fluid collected from lower one- third of vagina. RESULTS The prevalence of BV in women in the preterm labor group was 25.8% compared to 14.1% in the preterm contraction group (p = 0.07). CONCLUSION Compared with preterm contractions a higher prevalence of BV was found in the pregnant women with preterm labor. Given that a quarter of pregnant women with preterm labor tested positive for BV, it might be appropriate to perform this test in the triage setting.