Frequency of C trachomatis infection in association with selected variables
| Variable | Value | No of chlamydia LCR positive (%) | Unadjusted odds ratio (95% CI) | p Value* | Adjusted odds ratio (95% CI) | ||
|---|---|---|---|---|---|---|---|
| *p Values listed refer to the χ2 test, except for variables asterisked which were analysed using the wilcoxon rank sum test. Multivariate analysis included variables found to be statistically significant on these tests. | |||||||
| Age | <30 | 18/141 (12.8) | 10.5 (1.38 to 80.6) | 0.009* | 13.6 (1.69 to 109.7) | ||
| 30–39 | 11/148 (7.4) | 5.8 (0.73 to 45.7) | 7.6 (0.91 to 63.0) | ||||
| 40 | 1/73 (1.4) | 1 | 1 | ||||
| PMNL per hpf | <5 | 11/267 (4.1) | 1 | <0.001* | 1 | ||
| 5–9 | 4/30 (13.3) | } | 4.08 (1.65 to 10.1) | } | 3.59 (1.41 to 9.15) | ||
| 10–19 | 6/37 (16.2) | ||||||
| 20+ | 9/29 (31.0) | 10.5 (3.89 to 28.2) | 6.56 (2.15 to 20.0) | ||||
| Symptoms | |||||||
| Dysuria | Yes | 13/61 (21.3) | 4.54 (2.07 to 9.95) | <0.001 | 3.27 (1.32 to 8.08) | ||
| No | 17/302 (5.6) | 1 | 1 | ||||
| Discharge | Yes | 8/36 (22.2) | 3.96 (1.62 to 9.71) | 0.001 | 2.02 (0.67 to 6.07) | ||
| No | 22/327 (6.7) | 1 | 1 | ||||
| Penile discomfort | Yes | 2/51 (3.9) | 0.41 (0.096 to 1.79) | 0.224 | |||
| No | 28/312 (9.0) | 1 | |||||
| Testicular discomfort | Yes | 1/15 (6.7) | 0.79 (0.10 to 6.19) | 0.818 | |||
| No | 29/348 (8.3) | 1 | |||||
| Known STI contact | Yes | 8/58 (13.8) | 2.06 (0.87 to 4.88) | 0.095 | |||
| No | 22/305 (7.2) | 1 | |||||
| Signs: | |||||||
| Balanitis | Yes | 1/19 (5.3) | 0.57 (0.072 to 4.40) | 0.581 | |||
| No | 28/313 (9.0) | 1 | |||||
| Discharge | Yes | 10/46 (21.7) | 3.90 (1.68 to 9.05) | 0.001 | |||
| No | 19/286 (6.6) | 1 | |||||
| Epididymal tenderness | Yes | 0 | 0 - | 0.376 | |||
| No | 29/324 (9.0) | 1 | |||||