Summary sensitivity and specificity by quintiles of practice characteristics (5479 practices)
| Quintile 1 | Quintile 2 | Quintile 3 | Quintile 4 | Quintile 5 | |||||||
| Measure | % | (95% CI) | % | (95% CI) | % | (95% CI) | % | (95% CI) | % | (95% CI) | |
| Cancer incidence | Sensitivity | 46.6 | (46.2 to 47.0) | 46.8 | (46.4 to 47.1) | 47.3 | (47.9 to 47.7) | 47.4 | (47.1 to 47.8) | 48.5 | (48.2 to 48.9) |
| Specificity | 85.1 | (84.7 to 85.4) | 87.5 | (87.3 to 87.8) | 88.2 | (88.0 to 88.4) | 88.6 | (88.3 to 88.8) | 89.1 | (88.9 to 89.3) | |
| Patients aged 65+ years | Sensitivity | 46.8 | (46.4 to 47.2) | 46.6 | (46.2 to 47.0) | 47.0 | (46.6 to 47.4) | 47.7 | (47.3 to 48.0) | 48.6 | (48.2 to 48.9) |
| Specificity | 85.0 | (84.7 to 85.4) | 87.8 | (87.5 to 88.0) | 88.1 | (87.9 to 88.4) | 88.5 | (88.3 to 88.7) | 89.1 | (88.9 to 89.3) | |
| Socioeconomic status | Sensitivity | 48.0 | (47.6 to 48.4) | 47.5 | (47.1 to 47.9) | 47.8 | (47.4 to 48.2) | 46.9 | (46.5 to 47.3) | 46.6 | (46.1 to 47.0) |
| Specificity | 87.9 | (87.7 to 88.1) | 88.2 | (88.0 to 88.4) | 88.0 | (87.7 to 88.2) | 87.6 | (87.3 to 87.9) | 86.9 | (86.6 to 87.3) | |
| List size | Sensitivity | 48.8 | (48.3 to 49.2) | 47.3 | (46.9 to 47.7) | 47.2 | (46.8 to 47.5) | 47.1 | (46.8 to 47.5) | 47.5 | (47.1 to 47.8) |
| Specificity | 89.3 | (89.0 to 89.5) | 88.0 | (87.8 to 88.3) | 87.5 | (87.2 to 87.7) | 87.1 | (86.9 to 87.4) | 87.0 | (86.8 to 87.3) | |
| Age-standardised fast-track referral rate | Sensitivity | 42.8 | (42.5 to 43.2) | 46.2 | (45.9 to 46.6) | 48.1 | (47.8 to 48.5) | 48.8 | (48.4 to 49.1) | 50.6 | (50.2 to 50.9) |
| Specificity | 92.0 | (91.9 to 92.2) | 89.3 | (89.1 to 89.4) | 87.7 | (87.5 to 87.8) | 85.9 | (85.7 to 86.0) | 82.4 | (82.1 to 82.6) | |
Values in bold indicate those where 95% CI do not overlap the 95% CI of the middle (third) quintile.