Analysis of self-sampling at home and clinic-based CT testing in 14 counties in 2017
| Self-sampled tests | Clinic-based tests | P value | All tests | Positive tests, n (%) | Proportion of self-sampled tests of all tests (%) | Proportion of self-sampled positive tests of all positive tests (%) | |||
| Tests, n (%) | Positive tests, n (% positive) | Tests, n (%) | Positive tests, n (%) | Tests (n) | |||||
| Gender | |||||||||
| Male | 36 184 (33.7) | 2615 (7.2) | 141 994 (30.8) | 10 104 (7.1) | 0.463 | 178 178 (31.4) | 12 719 (7.1%) | 20.3 | 20.6 |
| Female | 71 185 (66.3) | 3312 (4.7) | 318 410 (69.2) | 13 160 (4.1) | <0.001 | 389 595 (68.6) | 16 472 (4.2) | 18.3 | 20.1 |
| Total | 107 369 | 5927 (5.5) | 460 404 | 23 264 (5.1) | <0.001 | 567 773 | 29 191 (5.1) | 18.9 | 20.3 |
| Age group | |||||||||
| 15–19 | 5062 (4.7) | 513 (10.1) | 57 566 (12.5) | 4061 (7.1) | <0.001 | 62 628 (11.0) | 4574 (7.3) | 8.1 | 11.2 |
| 20–24 | 37 561 (35.0) | 2463 (6.6) | 94 527 (20.5) | 6629 (7.0) | 0.003 | 132 088 (23.3) | 9092 (6.9) | 28.4 | 27.1 |
| 25–29 | 35 031 (32.6) | 1734 (4.9) | 74 617 (16.2) | 3290 (4.4) | <0.001 | 109 648 (19.3) | 5024 (4.6) | 31.9 | 34.5 |
| 30–34 | 14 484 (13.5) | 602 (4.2) | 48 611 (10.6) | 1572 (3.2) | <0.001 | 63 095 (11.1) | 2174 (3.4) | 23.0 | 27.7 |
| 35–44 | 10 692 (10.0) | 441 (4.1) | 52 215 (11.3) | 1380 (2.6) | <0.001 | 62 907 (11.1) | 1821 (2.9) | 17.0 | 24.2 |
| >44 | 4539 (4.2) | 174 (3.8) | 28 892 (6.3) | 730 (2.5) | <0.001 | 33 431 (5.9) | 904 (2.7) | 13.6 | 19.2 |
| Total | 107 369 (100) | 5927 (5.5) | 460 404 (100) | 23 264 (5.1) | <0.001 | 567 773 (100) | 29 191 (5.1) | 18.9 | 20.3 |
CT, Chlamydia trachomatis.