Adult gonorrhea, chlamydia and syphilis prevalence, incidence, treatment and syndromic case reporting in South Africa: Estimates using the Spectrum-STI model, 1990-2017 - Fig 3

Estimated trends in chlamydia in South African adults, 15–49 years: (a) prevalence in women; (b) prevalence in men; (c) incidence in women and men. Prevalence data shown have been adjusted for diagnostic test performance, urban/rural location, and under sampling of high-risk populations, as described in the methods and detailed in S1 File. Solid lines are best estimates; dotted lines are 95% Confidence Intervals. ANC = antenatal care clinic attendees, FP = family planning clinic attendees; PHC = Primary health clinic attendees.