Sexually Transmitted Infections and Male Circumcision: A Systematic Review and Meta-Analysis

Table 5

Studies of the association between circumcision status and the prevalence of nongonococcal urethritis.

Study	Uncircumcised +ve/−ve	Circumcised +ve/−ve	Odds ratio	95% confidence interval	Exact odds ratio	Exact confidence interval
Aynaud	56/106	9/39	2.29	1.04–5.06	2.2811	0.9954–5.7489
Cook	161/379	721/1515	0.89	0.73–1.10	0.8927	0.7225–1.0996
Dave	169/4664	39/943	0.88	0.61–1.25	0.8762	0.6106–1.2843
Donovan	55/60	81/104	1.18	0.74–1.88	1.1763	0.7177–1.9282
Ferris	34/1567	136/2209	0.35	0.24–0.52	0.3525	0.2333–0.5198
Laumann	21/1097	35/1414	0.77	0.45–1.34	0.7735	0.4252–1.3751
Lavreys	15/80	81/570	1.32	0.73–2.40	1.3189	0.6724–2.4469
Parker	138/452	236/493	0.64	0.50–0.82	0.6380	0.4946–0.8211
Richters	150/3367	369/5092	0.61	0.51–0.75	0.6148	0.5025–0.7492
Smith	NA	NA	0.61	0.50–0.73	0.61	0.50–0.73
Taylor	100/207	42/62	0.71	0.45–1.13	0.7137	0.4405–1.1624
Wilson	140/860	45/259	0.94	0.65–1.35	0.9370	0.6449–1.3807
Random effects summary effect:					0.76	0.63–0.92

Heterogeneity chi-square (df=11) was 39.78 (𝑃<.0001).