Demographic features of soldiers with gonorrhoea or chlamydia diagnosed on a US army base
| Active duty | Gonorrhoea | Risk ratio (95% CL) | Chlamydia | Risk ratio (95% CL) |
|---|---|---|---|---|
| *Statistically significant difference between these two groups (p<0.001). | ||||
| Males | 180/2039 (8.8%) | 288/2038 (14.1%) | ||
| Whites | 29/850 (3.4%) | Referent | 82/872 (9.4%) | Referent |
| Others | 16/329 (4.9%) | 1.4 (0.7 to 2.7) | 57/301 (18.9) | 2.1 (1.4 to 3.1) |
| Blacks | 135/ 860 (15.6%) | 4.6 (3.0 to 7.2) | 149/865 (17.2%) | 2.0 (1.4 to 2.7) |
| Residence | ||||
| Off post | 53/815 (6.5%) | Referent | 91/813 (11.2%) | Referent |
| Barracks | 123/1114 (11.0%) | 1.8 (1.3 to 2.5) | 182/1114 (16.3%) | 1.6 (1.2 to 2.1) |
| On post other | 4/110 (3.6%) | 0.5 (0.2 to 1.6) | 15/111 (13.5%) | 1.2 (0.7 to 2.3) |
| Rank | ||||
| Officers | 2/82 (2.5%) | Referent | 4/75 (5.3%) | Referent |
| E1–E4 | 138/1421 (9.7%) | 4.3 (1.6 to 25) | 225/1446 (15.6%)* | 3.3 (1.1 to 11.6) |
| E5–E8 | 41/532 (7.7%) | 3.3 (0.8 to 20.3) | 59/517 (11.4%)* | 2.3 (0.7 to 7.7) |
| Females | 30/815 (3.3%) | 157/822 (19.1%) | ||
| Whites | 21/440 (4.8%) | Referent | 66/458 (14.4%) | Referent |
| Others | 4/97 (4.1%) | 0.9 (0.2 to 2.7) | 29/77 (37.7%) | 3.6 (1.8 to 3.7) |
| Blacks | 6/278 (2.2%) | 0.4 (0.2 to 1.1) | 64/287 (22.2%) | 1.7 (1.1 to 2.1) |
| Residence | ||||
| Off post | 9/368 (2.5%) | Referent | 70/364 (19.2%) | Referent |
| On post other | 21/447 (4.8%) | 1.99 (0.9 to 4.7) | 87/458 (19.0%) | 1.0 (0.7 to 1.4) |
| Rank | ||||
| Officers | 0/22 (0%) | Referent | 2/23 (8.7%) | Referent |
| E1–E4 | 26/607 (4.3%) | 0.9 (0.1 to 19) | 139/616 (22.5%) | 3.1 (0.7 to 19)* |
| E5–E8 | 4/186 (2.2%) | 0.5 (0.1 to 11) | 16/183 (8.7%) | 1.0 (0.2 to 6.8)* |