• Supriya D Mehta, Stephen Moses, Kawango Agot, Corette Parker, Jeckoniah O Ndinya-Achola, Ian Maclean, and Robert C Bailey.
• Department of Epidemiology, University of Illinois at Chicago School of Public Health, Chicago, Illinois, USA. supriyad@uic.edu
• J. Infect. Dis. 2009 Aug 1;200(3):370-8.

BackgroundWe examined the effect of male circumcision on the acquisition of 3 nonulcerative sexually transmitted infections (STIs).MethodsWe evaluated the incidence of STI among men aged 18-24 years enrolled in a randomized trial of circumcision to prevent human immunodeficiency virus (HIV) infection in Kisumu, Kenya. The outcome was first incident nonulcerative STI during 2 years of follow-up. STIs examined were laboratory-detected Neisseria gonorrhoeae, Chlamydia trachomatis, and Trichomonas vaginalis infection.ResultsThere were 342 incident infections among 2655 men followed up. The incidences of infection due to N. gonorrhoeae, C. trachomatis, and T. vaginalis were 3.48, 4.55, and 1.32 cases per 100 person-years, respectively. The combined incidence of N. gonorrhoeae and C. trachomatis infection was 7.26 cases per 100 person-years (95% confidence interval, 6.49-8.13 cases per 100 person-years). The incidences of these STIs, individually or combined, did not differ by circumcision status as a time-dependent variable or a fixed variable based on assignment. Risks for incident STIs in multivariate analysis included an STI at enrollment, multiple sex partners within <30 days, and sexual intercourse during menses in the previous 6 months; condom use was protective.ConclusionsCircumcision of men in this population did not reduce their risk of acquiring these nonulcerative STIs. Improved STI control will require more-effective STI management, including partner treatment and behavioral risk reduction counseling.

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