Table 2 Chlamydia positivity and associations in men who have sex with men (MSM) attending MSHC 2002-2009
| Â | Urethral chlamydia | Anal chlamydia | ||||||
|---|---|---|---|---|---|---|---|---|
| Â | Number tested | Number positive (%) | Crude OR (95% CI) | Adjusted ORb(95% CI) | Number tested | Number positive (%) | Crude OR (95% CI) | Adjusted ORb(95% CI) |
All MSM | 7977 | 292 (3.70) | Â | Â | 6237 | 334 (5.36) | Â | Â |
Year of test a | ||||||||
| Â | Â | Â | 0.95 (0.90-1.01) | 0.95 (0.88-1.01) | Â | Â | 0.98(0.93-1.03) | 0.99 (0.93-1.06) |
Age group | ||||||||
< 25 | 1878 | 72 (3.83) | 1.05 (0.78-1.42) | 0.93 (0.62-1.38) | 1565 | 82 (5.24) | 1.18 (0.88-1.60) | 1.30 (0.89-1.90) |
25-34 | 3062 | 109 (3.56) | 0.97 (0.74-1.27) | 1.03 (0.74-1.44) | 2453 | 153 (6.24) | 1.42 (1.10-1.85) | 1.53 (1.09-2.15) |
> 35 | 3036 | 111 (3.66) | 1.00 | 1.00 | 2218 | 99 (4.46) | 1.00 | 1.00 |
No. male sexual partners 12 mo | ||||||||
0-1 | 1439 | 53 (3.68) | 1.00 | Â | 824 | 31 (3.76) | 1.00 | 1.00 |
> 1 | 5672 | 211 (3.72) | 1.01 (0.74-1.37) | Â | 4635 | 256 (5.52) | 1.50 (1.02-2.19) | 1.78 (1.06-3.00) |
Condom use 12 mo | ||||||||
always | 2615 | 78 (2.98) | 1.00 | 1.00 | 2187 | 85 (3.89) | 1.00 | Â |
sometimes, usually, never | 3363 | 153 (3.98) | 1.55 (1.17-2.05) | 1.55 (1.14-2.11) | 2963 | 204 (6.88) | 1.83 (1.41-2.37) | Â |
No. male sexual partners 3 mo | ||||||||
0-1 | 2849 | 96 (3.37) | 1.00 | 1.00 | 1970 | 86 (4.37) | 1.00 | Â |
> 1 | 4449 | 177 (3.98) | 1.19 (0.92-1.53) | 1.40 (1.00-1.95) | 3661 | 213 (5.82) | 1.35 (1.05-1.75) | Â |
Condom use 3 mo | ||||||||
always | 2564 | 85 (3.32) | 1.00 | Â | 2205 | 93 (4.22) | 1.00 | 1.00 |
sometimes, usually, never | 2920 | 135 (4.62) | 1.41 (1.07-1.86) | Â | 2590 | 182 (7.03) | 1.72 (1.33-2.22) | 1.88 (1.40-2.52) |
Contact with infection or symptomatic presentation | Â | Â | Â | Â | ||||
No | 3169 | 61 (1.92) | 1.00 | 1.00 | 2555 | 118 (4.62) | 1.00 | 1.00 |
Yes | 3008 | 174 (5.78) | 3.13 (2.33-4.21) | 2.79 (2.02-3.86) | 2112 | 137 (6.49) | 1.43 (1.11-1.85) | 1.43 (1.08-1.89) |