Prevalence of asymptomatic Chlamydia trachomatis infections as detected by ligase chain reaction in urine, in men and women registered in inner city general practices in Amsterdam; total prevalence, prevalence according to age, and prevalence according to origin
| Females | Males | |||
|---|---|---|---|---|
| Cases/n | Prevalence (%) [95% CI] | Cases/n | Prevalence (%) [95% CI] | |
| CI = confidence interval. | ||||
| Total | 81/2902 | 2.8 [2.2–3.4] | 45/1908 | 2.4 [1.7–3.0] |
| Age (years) | ||||
| 15–20 | 5/209 | 2.4 [0.3–4.5] | 1/149 | 0.7 [0–2.0] |
| 21–25 | 21/472 | 4.4 [2.6–6.3] | 8/246 | 3.3 [1.0–5.5] |
| 26–30 | 23/832 | 2.8 [1.6–3.9] | 15/476 | 3.2 [1.6–4.7] |
| 31–35 | 19/756 | 2.5 [1.4–3.6] | 14/575 | 2.4 [1.2–3.7] |
| 36–40 | 13/632 | 2.1 [0.9–3.1] | 7/462 | 1.5 [0.4–2.6] |
| Origin | ||||
| Dutch | 59/2204 | 2.7 [2.0–3.4] | 30/1368 | 2.2 [1.4–3.0] |
| Other European | 3/104 | 2.9 [0–6.1] | 1/62 | 1.6 [0–4.8] |
| Surinam/Antillean | 15/294 | 5.1 [2.6–7.6] | 9/162 | 5.6 [2.0–9.1] |
| Turkish/Moroccan | 1/114 | 0.9 [0–2.6] | 3/148 | 2.0 [0–4.3] |
| Other | 2/125 | 1.6 [0–3.8] | 2/122 | 1.6 [0–3.9] |