Summary of retesting study participants (age, gender and area): with number and percentage retested and rediagnosed in Cornwall, Bristol and Dorset, England, August 2012–July 2013
| Area | Gender | Age | N | N retested | Percentage retested | Confirmed result | Positive | Percentage positive |
|---|---|---|---|---|---|---|---|---|
| Bristol | Female | 15–19 | 79 | 32 | 40.5 | 31 | 4 | 12.9 |
| 20–25 | 167 | 74 | 44.3 | 73 | 7 | 9.6 | ||
| Subtotal (gender) | 246 | 106 | 43.1 | 104 | 11 | 10.6% | ||
| Male | 15–19 | 14 | 2 | 14.3 | 2 | 0 | 0.0 | |
| 20–25 | 86 | 22 | 25.6 | 20 | 2 | 10.0 | ||
| Subtotal (gender) | 100 | 24 | 24.0 | 22 | 2 | 9.1 | ||
| Subtotal (area) | 346 | 130 | 37.6 | 126 | 13 | 10.3 | ||
| Cornwall | Female | 15–19 | 53 | 24 | 45.3 | 24 | 1 | 4.2 |
| 20–25 | 142 | 60 | 42.3 | 60 | 9 | 15.0 | ||
| Subtotal (gender) | 195 | 84 | 43.1 | 84 | 10 | 11.9 | ||
| Male | 15–19 | 7 | 1 | 14.3 | 1 | 0 | 0.0 | |
| 20–25 | 50 | 7 | 14.0 | 7 | 1 | 14.3 | ||
| Subtotal (gender) | 57 | 8 | 14.0 | 8 | 1 | 12.5 | ||
| Subtotal (area) | 252 | 92 | 36.5 | 92 | 11 | 12.0 | ||
| Dorset | Female | 15–19 | 37 | 24 | 64.9 | 24 | 2 | 8.3 |
| 20–25 | 57 | 29 | 50.9 | 29 | 2 | 6.9 | ||
| Subtotal (gender) | 94 | 53 | 56.4 | 53 | 4 | 7.5 | ||
| Male | 15–19 | 23 | 7 | 30.4 | 7 | 1 | 14.3 | |
| 20–25 | 63 | 21 | 33.3 | 21 | 2 | 9.5 | ||
| Subtotal (gender) | 86 | 28 | 32.6 | 28 | 3 | 10.7 | ||
| Subtotal (area) | 180 | 81 | 45.0 | 81 | 7 | 8.6 | ||
| Total | Female | 15–19 | 169 | 80 | 47.3 | 79 | 7 | 8.9 |
| 20–25 | 366 | 163 | 44.5 | 162 | 18 | 11.1 | ||
| Subtotal (gender) | 535 | 243 | 45.4 | 241 | 25 | 10.4 | ||
| Male | 15–19 | 44 | 10 | 22.7 | 10 | 1 | 10.0 | |
| 20–25 | 199 | 50 | 25.1 | 48 | 5 | 10.4 | ||
| Subtotal (gender) | 243 | 60 | 24.7 | 58 | 6 | 10.3 | ||
| 778 | 303 | 38.9 | 299 | 31 | 10.4 | |||