Table 5: Studies of the association between circumcision status and the prevalence of nongonococcal urethritis.

StudyUncircumcised +ve/−veCircumcised +ve/−veOdds ratio95% confidence intervalExact odds ratioExact confidence interval

Aynaud 56/1069/392.291.04–5.062.28110.9954–5.7489
Cook 161/379721/15150.890.73–1.100.89270.7225–1.0996
Dave 169/466439/9430.880.61–1.250.87620.6106–1.2843
Donovan 55/6081/1041.180.74–1.881.17630.7177–1.9282
Ferris34/1567136/22090.350.24–0.520.35250.2333–0.5198
Laumann 21/109735/14140.770.45–1.340.77350.4252–1.3751
Lavreys 15/8081/5701.320.73–2.401.31890.6724–2.4469
Parker 138/452236/4930.640.50–0.820.63800.4946–0.8211
Richters150/3367369/50920.610.51–0.750.61480.5025–0.7492
SmithNANA0.610.50–0.730.610.50–0.73
Taylor 100/20742/620.710.45–1.130.71370.4405–1.1624
Wilson 140/86045/2590.94 0.65–1.350.93700.6449–1.3807
Random effects summary effect:0.760.63–0.92

Heterogeneity chi-square ( ) was 39.78 ( ).