Comparison of incidence rates (IRs) among female sex workers with cervical infections and those uninfected at baseline (N=360)
| Not infected at baseline | Infected at baseline | Overall | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Infection | n | Incidents | PYs | IR (95% CI) | n | Incidents | PYs | IR (95% CI) | HR† | IR (95% CI) |
| GC | 308 | 57 | 151.1 | 37.7 (29.1 to 48.9) | 52 | 32 | 21.0 | 152.6 (107.9 to 215.8) | 4.06* | 51.7 (42.0 to 63.7) |
| CT | 306 | 68 | 145.3 | 46.8 (36.9 to 59.4) | 54 | 28 | 23.6 | 118.6 (81.9 to 171.8) | 2.60* | 56.8 (46.5 to 69.4) |
| GC and/or CT | 267 | 75 | 122.3 | 61.3 (48.9 to 76.9) | 93 | 62 | 37.8 | 164.2 (128.0 to 210.6) | 2.73* | 85.6 (72.4 to 101.2) |
*p<0.001
†Comparison between incidence rates of those infected and uninfected at baseline.
CT, Chlamydia trachomatis; GC, Neisseria gonorrhoeae; IR, incidence rate; PY, person year.