Estimated rate ratios derived from Poisson regression model of first episodes of genital Chlamydia trachomatis infection, Coventry residents 1992–96, males
| Age band (years) | Ethnic groupy | Deprivation level | Episodes | Population 1992–6 | Incidence (per 100 000) | 95% CI | Unadjusted rate ratio | Adjusted rate ratio* | Confidence interval |
|---|---|---|---|---|---|---|---|---|---|
| *Adjusted by Poisson regression with white, aged 25–64 and lowest deprivation as baseline. | |||||||||
| Main effects plus terms for interaction between ethnic group and age and ethnic group and deprivation level. | |||||||||
| 15–19 | white | low | 12 | 14 015 | 86 | (44–149) | 1.3 | 1.4 | (1.0–1.9) |
| moderate | 16 | 13 650 | 117 | (67–190) | 1.8 | 2.2 | (1.5–3.2) | ||
| high | 20 | 12 515 | 160 | (98–247) | 2.5 | 2.5 | (1.7–3.6) | ||
| black | low | 0 | 205 | 0 | (0–1780) | 0.0 | 3.0 | (0.8–11.6) | |
| moderate | 2 | 235 | 851 | (103–3040) | 13.3 | 9.5 | (3.8–23.6) | ||
| high | 4 | 395 | 1013 | (277–2572) | 15.8 | 18.3 | (7.9–42.2) | ||
| other | low | 1 | 1 105 | 90 | (23–503) | 1.4 | 0.9 | (0.2–3.2) | |
| moderate | 11 | 2 000 | 50 | (27–98) | 0.8 | 0.6 | (0.2–2.3) | ||
| high | 1 | 4 685 | 21 | (0–120) | 0.3 | 0.6 | (0.2–1.9) | ||
| 20–24 | white | low | 36 | 16 145 | 223 | (156–309) | 3.5 | 4.2 | (3.5–5.1) |
| moderate | 63 | 17 165 | 367 | (282–469) | 5.7 | 6.4 | (4.8–8.6) | ||
| high | 88 | 18 450 | 475 | (385–588) | 7.4 | 7.3 | (5.5–9.8) | ||
| black | low | 2 | 205 | 976 | (118–3480) | 15.3 | 3.5 | (1.0–12.3) | |
| moderate | 3 | 450 | 667 | (138–1936) | 10.4 | 11.1 | (5.6–22.3) | ||
| high | 9 | 820 | 1098 | (503–2073) | 17.2 | 21.6 | (12.2–38.3) | ||
| other | low | 1 | 1 385 | 72 | (2–401) | 1.1 | 3.4 | (1.5–8.0) | |
| moderate | 5 | 2 010 | 249 | (80–580) | 3.9 | 2.5 | (1.1–5.7) | ||
| high | 6 | 4 420 | 136 | (50–295) | 2.1 | 2.3 | (1.2–4.6) | ||
| 25–64 | white | low | 71 | 111 735 | 64 | (50–80) | referent | referent | referent |
| moderate | 104 | 110 075 | 94 | (78–115) | 1.5 | 1.5 | (1.2–1.9) | ||
| high | 93 | 97 595 | 95 | (77–117) | 1.5 | 1.7 | (1.4–2.2) | ||
| black | low | 1 | 940 | 106 | (3–591) | 1.7 | 3.9 | (1.2–12.5) | |
| moderate | 14 | 1 970 | 711 | (389–1190) | 11.1 | 12.5 | (7.5–20.7) | ||
| high | 46 | 3 060 | 1503 | (1102–2000) | 23.5 | 24.2 | (17.1–34.1) | ||
| other | low | 6 | 5 510 | 109 | (40–240) | 1.7 | 1.4 | (0.6–3.0) | |
| moderate | 4 | 10 035 | 40 | (11–102) | 0.6 | 1.0 | (0.5–2.1) | ||
| high | 11 | 18 190 | 60 | (30–108) | 0.9 | 0.9 | (0.5–1.7) | ||