Incidence rates for all episodes of genital Chlamydia trachomatis in Coventry residents 1992–6 according to demographic risk factors
| Cases | Population at risk 1992–6* | Annualised crude incidence (95% CI) (per 100 000 aged 15–64) | Crude rate ratio within group | |
|---|---|---|---|---|
| Males | ||||
| Age (years) | ||||
| 15–19 | 66 | 48 805 | 135 (102–172) | 1.2 |
| 20–24 | 236 | 61 140 | 386 (338–438) | 3.5 |
| 25–64 | 396 | 359 110 | 110 (100–121) | 1.0 |
| Ethnic group | ||||
| white | 547 | 411 435 | 133 (122–145) | 1.0 |
| black | 114 | 8 280 | 1377 (1137–1652) | 10.4 |
| other | 37 | 49 340 | 75 (54–105) | 0.6 |
| Deprivation | ||||
| low | 141 | 151 245 | 93 (78–110) | 1.0 |
| moderate | 242 | 157 590 | 154 (134–174) | 1.7 |
| high | 315 | 160 220 | 197 (176–220) | 2.1 |
| Females | ||||
| Age (years) | ||||
| 15–19 | 225 | 47 410 | 475 (415–540) | 9.1 |
| 20–24 | 230 | 61 445 | 374 (327–426) | 7.2 |
| 25–64 | 187 | 360 560 | 52 (45–60) | 1.0 |
| Ethnic group | ||||
| white | 587 | 412 365 | 142 (131–155) | 1.0 |
| black | 38 | 7 855 | 484 (343–663) | 3.4 |
| other | 17 | 49 195 | 35 (20–55) | 0.2 |
| Deprivation | ||||
| low | 172 | 149 850 | 115 (99–134) | 1.0 |
| moderate | 199 | 155 370 | 128 (111–147) | 1.1 |
| high | 271 | 164 195 | 165 (146–186) | 1.4 |