Vaginal pH Estimation, an Additional Tool for RTI/STI Community Screening

To study laboratory evidence of infection in STI/RTI cases managed by syndromic approach. To evaluate vaginal pH estimation as an additional supplementary tool for community screening of STI/ RTI cases.

Study was conducted in department of Gynecology and Obstetrics, Mahila Chikiksalaya Sanganeri gate Jaipur in collaboration with Department of Microbiology, SMS Medical College Jaipur, Rajasthan. STI cases screened by syndromic approach attending the STI clinic were included in study. Vaginal pH of these cases was measured with help of Jaipur pink V strip. Cases with vaginal pH more than five and less than 5 were grouped separately. Evidence of infection was assessed in both groups by performing predefined battery of tests. Results of both the groups were analyzed.

Laboratory evidence of infection was seen in 78% of syndromically screened RTIs/STI cases while screening by combined approach, i.e., syndromic approach and Vaginal pH estimation both, showed positive predictability of 92% with 75% sensitivity and 79% specificity.

Laboratory evidence of infection was found in 92% of RTI/STI cases when screened by combined approach as compared to 78% in syndromic approach alone. Vaginal strips being user friendly can be used as additional tool for community screening of RTI/STI.