Direct questioning of genital symptoms: increasing opportunities for identifying and treating sexually transmitted infections in primary health-care settings.

We investigated the validity of self-reporting of genital symptoms amongst rural women attending primary health care clinics in rural KwaZulu-Natal. Random samples of 226 women were interviewed to measure self-reporting (unprompted), prompted and pelvic examination findings of genital symptoms. Against the presence of any STI self-reporting (unprompted) of symptoms had a sensitivity of 46.1%, specificity of 64.7%, positive predictive value (PPV) of 80.0% and negative predictive value (NPV) of 28.0% compared to prompted symptoms which had a sensitivity of 78.5%, specificity of 52.9%, PPV of 80.4% and NPV of 50.0%. The agreement between self-reporting (unprompted) and prompted symptoms was 0.54 (Kappa statistic). Our results suggest that in rural areas, by prompting women with a simple set of questions, the identification and treatment of STIs in this population would be enhanced, leading to better reproductive health outcomes including reduction of risk of infection with HIV.