FIGURE 1. Trends in the prevalence of gonorrhea, chlamydia, and active syphilis in women 15-49 years old in Colombia, 1990-2016^a.

^a The prevalence data are shown after adjustments for diagnostic test performance, geography, and high-risk populations (Annex 1 and Annex 2), as described in the Methods section of this article. The solid lines are best estimates; the dotted lines are 95% confidence intervals. The World Health Organization (WHO) 2012 estimates for the Central America region (for gonorrhea and chlamydia) and the Andean region (for syphilis) (both from Newman et al. (9)) are shown for reference, but were not used in the estimations for Colombia. For gonorrhea and chlamydia, the “surveys Colombia, nonrepresentative” data were not used in the best estimates but were included in the sensitivity analysis (which is presented in Table 2 of this article). For syphilis, “blood donor screening, men and women” data were not used in the best estimates but were included in the sensitivity analysis (Table 2).

Source: Prepared by the authors from the study's estimations and the underlying data presented in the supplementary annexes.