Adjusted HIV incidence rate (aIRR) by self-reported male circumcision status and clinical circumcision status among men aged 22 to 34. Self-reported uncircumcised and self-reported circumcised men are labeled "Uncir" and "Circ" on the figure, respectively. aIRR, 95% confidence intervals (CI) and p-values (p) were calculated using Poisson regression. Covariates were age, ethnic group, marital status, number of lifetime sexual partners, number of sexual partners in the past 12 months, consistent condom use with non spousal partners and HSV-2 status.
Lissouba et al. BMC Infectious Diseases 2011 11:253 doi:10.1186/1471-2334-11-253