Cumulative incidence of reported previous STI diagnosis by circumcision status among men aged 16–44 years in Britain (Natsal 2000*)
| Uncircumcised†% | Circumcised†% | OR for being circumcised | p Value | |
|---|---|---|---|---|
| (95% CI) | (95% CI) | (95% CI) | ||
| *In addition to the main Natsal 2000 sample, an additional sample (unweighted/weighted) of 406/299 men from black Caribbean, black African, Indian, and Pakistani ethnic groups were recruited in order to provide more robust estimates for these population groups. | ||||
| †Unweighted/weighted bases for uncircumcised men are 4833/3795, respectively, and for circumcised men are 913/982, respectively. | ||||
| ‡Gonorrhoea, genital chlamydia, syphilis, non-specific urethritis, genital herpes, genital warts, and trichomonas. | ||||
| §Gonorrhoea, genital chlamydia, syphilis, and non-specific urethritis. | ||||
| ¶Genital herpes and genital warts. | ||||
| Any STI‡ | 10.8 (9.8 to 12.0) | 11.1 (9.0 to 13.7) | 1.03 (0.80 to 1.34) | 0.815 |
| Any bacterial STI§ | 5.9 (5.1 to 6.8) | 6.4 (4.8 to 8.5) | 1.09 (0.77 to 1.55) | 0.628 |
| Any viral STI¶ | 4.5 (3.8 to 5.3) | 4.7 (3.4 to 6.6) | 1.05 (0.72 to 1.55) | 0.789 |
| Gonorrhoea | 1.1 (0.8 to 1.6) | 1.5 (0.8 to 2.6) | 1.31 (0.67 to 2.58) | 0.432 |
| Genital chlamydia | 1.5 (1.1 to 1.9) | 1.2 (0.7 to 2.2) | 0.81 (0.41 to 1.61) | 0.555 |
| Syphilis | 0.2 (0.0 to 0.6) | 0.3 (0.0 to 1.0) | 1.29 (0.27 to 6.05) | 0.748 |
| Non-specific urethritis | 3.5 (2.8 to 4.2) | 4.0 (2.7 to 5.9) | 1.17 (0.74 to 1.84) | 0.501 |
| Genital herpes | 1.0 (0.8 to 1.4) | 1.1 (0.6 to 2.3) | 1.10 (0.51 to 2.38) | 0.804 |
| Genital warts | 3.6 (3.0 to 4.3) | 3.8 (2.6 to 5.5) | 1.04 (0.67 to 1.63) | 0.858 |
| Trichomonas | 0.4 (0.2 to 0.7) | 0.1 (0.0 to 0.5) | 0.26 (0.04 to 1.62) | 0.148 |