Table 1 Demographics, risk factors and clinical features, by diagnosis – GU cases and NGU controls
From: Men at risk of gonococcal urethritis: a case-control study in a Darwin sexual health clinic
Total n = 145 (100%) | GU - cases n = 25 (17.2%) | NGU - controls n = 120 (82.8%) | OR (95% CI) | aOR (95% CI) | |
|---|---|---|---|---|---|
Demographics | |||||
Median age, years (IQR) | 31 (25 to 40) | 40 (30 to 50) | 30 (24 to 38) | ||
Age > =30 | 81/145 (55.9%) | 19/25 (76.0%) | 62/120 (51.7%) | 3.0 (1.1 to 7.9)* | 3.0 (0.9 to 9.6) |
Aboriginal | 16/142 (11.3%) | 6/25 (24.0%) | 10/117 (8.5%) | 3.4 (1.1 to 10.4)* | 1.4 (0.3 to 7.0) |
Born overseas | 57/145 (39.3%) | 6/25 (24.0%) | 51/120 (42.5%) | 0.4 (0.2 to 1.1) | Excluded |
Risk factors and behaviours | |||||
Median no. of sexual partners, past 6/12 (IQR) | 3 (2 to 6) | 3.5 (2 to 7) | 3 (2 to 5) | ||
> =5 sexual partners, past 6/12 | 55/145 (37.9%) | 11/25 (44.0%) | 44/120 (36.7%) | 1.4 (0.6 to 3.2) | Excluded |
Men who have sex with men (MSM) | 12/145 (8.3%) | 2/25 (8.0%) | 10/120 (8.3%) | 1.0 (0.2 to 4.7) | 0.46 (0.1 to 2.8) |
Condom used in most recent encounter | 18/145 (12.4%) | 1/25 (4.0%) | 17/120 (14.2%) | 0.3 (0.0 to 2.0) | Excluded |
Casual partner in most recent encounter | 113/145 (77.9%) | 21/25 (84%) | 92/120 (75.0%) | 1.6 (0.5 to 5.0) | Excluded |
Clinical features | |||||
Median duration of symptoms, days (IQR) | 5 (2 to 10) | 2.5 (1 to 4) | 7 (3 to 14) | ||
> =7 days of symptoms | 73/145 (50.3%) | 5/25 (20.0%) | 68/120 (56.7%) | 0.3 (0.1 to 0.9)* | Excluded |
History of discharge | 67/145 (46.2%) | 18/25 (72.0%) | 49/120 (40.8%) | 3.7 (1.4 to 9.6)* | 5.7 (1.4 to 22.6)* |
History of discharge purulent discharge | 39/145 (26.9%) | 14/25 (56.0%) | 25/120 (20.8%) | 4.8 (2.0 to 11.9)‡ | Excluded |
History of urethral discomfort | 135/145 (93.1%) | 23/25 (92.0%) | 112/120 (93.3%) | 0.8 (0.2 to 4.1) | Excluded |
Any abnormalities on genital examination | 59/116 (50.9%) | 19/21 (90.5%) | 40/95 (42.1%) | 13.1 (2.9 to 59.3)‡ | 10.4 (2.1 to 50.8)* |