Chlamydia, gonorrhoea, trichomoniasis and syphilis: global prevalence and incidence estimates, 2016
Loading...
Authors
Rowley, Jane; Vander Hoorn, Stephen; Korenromp, Eline; Low, Nicola; Unemo, Magnus; Abu-Raddad, Laith J;Chico, R Matthew;Smolak, Alex; Newman, Lori; Gottlieb, Sami; Thwin, Soe Soe; Broutet, Nathalie;Taylor, Melanie M
Issue Date
2019
Type
Journal / periodical articles
Language
Keywords
Research;Sexually transmitted infection;Chlamydia, Gonorrhoea, Trichomoniasis;Syphilis
Alternative Title
Abstract
Description
Objective: To generate estimates of the global prevalence and incidence of urogenital infection with chlamydia, gonorrhoea, trichomoniasis
and syphilis in women and men, aged 15–49 years, in 2016.
Methods: For chlamydia, gonorrhoea and trichomoniasis, we systematically searched for studies conducted between 2009 and 2016 reporting
prevalence. We also consulted regional experts. To generate estimates, we used Bayesian meta-analysis. For syphilis, we aggregated the
national estimates generated by using Spectrum-STI.
Findings: For chlamydia, gonorrhoea and/or trichomoniasis, 130 studies were eligible. For syphilis, the Spectrum-STI database contained
978 data points for the same period. The 2016 global prevalence estimates in women were: chlamydia 3.8% (95% uncertainty interval, UI:
3.3–4.5); gonorrhoea 0.9% (95% UI: 0.7–1.1); trichomoniasis 5.3% (95% UI:4.0–7.2); and syphilis 0.5% (95% UI: 0.4–0.6). In men prevalence
estimates were: chlamydia 2.7% (95% UI: 1.9–3.7); gonorrhoea 0.7% (95% UI: 0.5–1.1); trichomoniasis 0.6% (95% UI: 0.4–0.9); and syphilis
0.5% (95% UI: 0.4–0.6). Total estimated incident cases were 376.4 million: 127.2 million (95% UI: 95.1–165.9 million) chlamydia cases; 86.9
million (95% UI: 58.6–123.4 million) gonorrhoea cases; 156.0 million (95% UI: 103.4–231.2 million) trichomoniasis cases; and 6.3 million
(95% UI: 5.5–7.1 million) syphilis cases.
Conclusion: Global estimates of prevalence and incidence of these four curable sexually transmitted infections remain high. The study
highlights the need to expand data collection efforts at country level and provides an initial baseline for monitoring progress of the World
Health Organization global health sector strategy on sexually transmitted infections 2016–2021.
Citation
Publisher
WHO
License
CC BY-NC-SA 3.0 IGO