Table 2.
Participation in chlamydia screening, by region, sex, and screening invitation
| No of people invited | No of people participated | Participation rate (% (95% CI))* | |
|---|---|---|---|
| Total: | 834 971 | 102 283 | 12.2 (11.7 to 12.8) |
| 1st invitation | 269 273 | 43 358 | 16.1 (15.3 to 16.9) |
| 2nd invitation | 265 979 | 28 803 | 10.8 (10.3 to 11.4) |
| 3rd invitation | 251 688 | 23 899 | 9.5 (9.0 to 10.0) |
| Control | 48 031 | 6223 | 13.0 (11.4 to 14.7) |
| Region | |||
| Amsterdam: | |||
| 1st invitation | 139 919 | 24 059 | 17.2 (16.4 to 18.3) |
| 2nd invitation | 136 689 | 16 355 | 12.0 (11.2 to 12.8) |
| 3rd invitation | 133 736 | 13 866 | 10.4 (9.6 to 11.3) |
| Control | 18 626 | 2899 | 15.6 (12.5 to 19.3) |
| Rotterdam: | |||
| 1st invitation | 103 335 | 16 414 | 15.8 (14.6 to 17.1) |
| 2nd invitation | 104 692 | 10 753 | 10.2 (9.5 to 11.0) |
| 3rd invitation | 104 885 | 9057 | 8.7 (8.0 to 9.4) |
| Control | 16 533 | 2254 | 13.6 (11.8 to 15.6) |
| South Limburg: | |||
| 1st invitation | 26 019 | 2885 | 11.1 (10.1 to 12.3) |
| 2nd invitation | 24 598 | 1687 | 6.9 (6.2 to 7.6) |
| 3rd invitation | 13 067 | 874 | 6.7 (5.8 to 7.6) |
| Control | 12 872 | 1070 | 8.3 (7.1 to 9.8) |
| Gender | |||
| Male: | |||
| 1st invitation | 129 462 | 13 617 | 10.5 (10.0 to 11.0) |
| 2nd invitation | 128 299 | 8616 | 6.7 (6.4 to 7.0) |
| 3rd invitation | 121 156 | 6970 | 5.8 (5.5 to 6.0) |
| Control | 23 884 | 2025 | 8.5 (7.6 to 9.5) |
| Female: | |||
| 1st invitation | 142 419 | 29 831 | 21.3 (20.3 to 22.3) |
| 2nd invitation | 141 078 | 20 246 | 14.7 (13.9 to 15.4) |
| 3rd invitation | 131 010 | 16 853 | 13.0 (12.2 to 13.8) |
| Control | 24 172 | 4199 | 17.4 (15.1 to 19.9) |
*Confidence intervals are corrected for cluster effect (inter-cluster effect on participation was significant).