Estimated incidence of gonorrhoea cases diagnosed in GUM clinics in 1996 by selected characteristics
| Factor | Number of cases* (%) | Rate per 100 000 population† | Relative rate (95% CI) |
|---|---|---|---|
| *Adjusted for oversampling of inner London GUM clinics. | |||
| †Population sizes were estimated using data from mid-year population estimates for 199611 (region, sex, and age estimates), the 1991 census12 adjusted for undercoverage by age, sex, and ethnic group13 (ethnic group and area of birth estimates), and the National Study of Sexual Attitudes and Lifestyles14 (sexual orientation and previous GUM clinic attendance estimates). | |||
| ‡Includes patients for whom ethnic group was not recorded. | |||
| §Includes patients for whom country of birth was not recorded. | |||
| Region | |||
| North Thames | 211 (25) | 56 | 1.00 |
| South Thames | 89 (11) | 42 | 0.76 (0.63, 0.93) |
| North West | 148 (17) | 38 | 0.68 (0.55, 0.84) |
| Northern and Yorkshire | 37 (4) | 10 | 0.18 (0.12, 0.25) |
| Trent | 108 (13) | 35 | 0.64 (0.51, 0.80) |
| Anglia and Oxford | 46 (5) | 14 | 0.26 (0.19, 0.35) |
| South and West | 55 (6) | 14 | 0.25 (0.19, 0.34) |
| West Midlands | 49 (6) | 15 | 0.28 (0.21, 0.38) |
| Sex | |||
| Female | 268 (32) | 18 | 1.00 |
| Male | 579 (68) | 39 | 2.14 (1.90, 2.40) |
| Age group | |||
| 13–15 | 11 (1) | 12 | 0.13 (0.07, 0.24) |
| 16–19 | 159 (19) | 83 | 1.00 |
| 20–24 | 224 (27) | 85 | 1.02 (0.84, 1.25) |
| 25–29 | 181 (22) | 57 | 0.68 (0.55, 0.83) |
| 30–34 | 124 (15) | 36 | 0.44 (0.35, 0.55) |
| 35–44 | 103 (12) | 18 | 0.21 (0.17, 0.27) |
| 45–70 | 23 (3) | 2 | 0.03 (0.02, 0.04) |
| Not recorded | 24 (3) | — | — |
| Male sexual orientation | |||
| Heterosexual | 385 (66) | 27 | 1.00 |
| Homo/bisexual | 166 (29) | 812 | 30.15 (25.22, 36.04) |
| Not known | 29 (5) | — | — |
| Female sexual orientation | |||
| Heterosexual | 260 (97) | 18 | 1.00 |
| Homo/bisexual | 2 (1) | 23 | 1.28 (0.32, 5.15) |
| Not recorded | 7 (2) | — | — |
| Ethnic group | |||
| White | 362 (43) | 22‡ | 1.00‡ |
| Black Caribbean | 155 (18) | 467 | 21.36 (17.91, 25.47) |
| Black African | 31 (4) | 235 | 10.77 (7.51, 15.45) |
| Indian/Pakistani/Bangladeshi | 18 (2) | 22 | 1.02 (0.64, 1.63) |
| Other/mixed | 32 (4) | 72 | 3.29 (2.30, 4.69) |
| Not recorded | 251 (30) | — | — |
| Area of birth | |||
| UK | 614 (72) | 21§ | 1.00§ |
| Rest of Europe | 31 (4) | 31 | 1.50 (1.05, 2.16) |
| Latin America and Caribbean | 28 (3) | 112 | 5.43 (3.72, 7.91) |
| Africa | 17 (2) | 64 | 3.08 (1.91, 4.99) |
| Other | 23 (3) | 16 | 0.77 (0.51, 1.17) |
| Not recorded | 135 (16) | — | — |
| Previous GUM attendance | |||
| No | 324 (51) | 11 | 1.00 |
| Yes | 374 (44) | 433 | 37.93 (35.46, 40.56) |
| Not recorded | 34 (5) | — | |