Size of variation, and proportions of observed variance explained by chance and/or age-sex differences between practice populations. Note that the per cent of variance explained is on the log/log odds, respectively, as opposed to the natural scale
| Column 1 | Column 2 | Column 3 | Column 4 | Column 5 | Column 6 | Column 7 | Column 8 | Column 9 | Column 10 | Column 11 |
| Diagnostic process or outcome indicators | Number of practices included | Per cent of variance due to chance alone | Per cent of variance due to practice age-sex profile (beyond role of chance) | Per cent of variance due to both chance and practice age-sex profile | Observed (actually reported) 75th/25th RR/OR | Adjusted for chance 75th/25th RR/OR | Adjusted for chance and practice age-sex profile 75th/25th RR/OR | Observed (actually reported) 90th/10th RR/OR | Adjusted for chance 90th/10th RR/OR | Adjusted for chance and practice age-sex profile 90th/10th RR/OR |
| Process indicators | ||||||||||
| Breast screening coverage | 7951 | 9.5 | 53.8 | 58.2 | 1.82 | 1.75 | 1.46 | 3.03 | 2.90 | 2.06 |
| Cervical screening coverage | 7910 | 6.9 | 46.0 | 49.8 | 1.54 | 1.57 | 1.39 | 2.36 | 2.37 | 1.88 |
| Bowel screening coverage | 7924 | 13.9 | 75.3 | 78.8 | 1.78 | 1.70 | 1.30 | 2.92 | 2.74 | 1.65 |
| Sigmoidoscopy rate | 7954 | 31.1 | 24.9 | 48.3 | 1.99 | 1.93 | 1.77 | 4.22 | 3.52 | 2.97 |
| Colonoscopy rate | 7954 | 37.8 | 38.6 | 61.8 | 1.81 | 1.76 | 1.56 | 3.26 | 2.96 | 2.34 |
| Upper gastrointestinal endoscopy rate | 7954 | 26.5 | 33.9 | 51.4 | 1.67 | 1.70 | 1.54 | 2.85 | 2.74 | 2.27 |
| TWW referral rate | 7954 | 19.6 | 39.9 | 51.7 | 1.86 | 1.92 | 1.66 | 3.56 | 3.46 | 2.62 |
| TWW referral rate (colorectal) | 7954 | 34.1 | 41.4 | 61.4 | 2.36 | 2.17 | 1.81 | 6.44 | 4.40 | 3.11 |
| TWW referral rate (lung) | 7954 | 40.4 | 25.0 | 55.3 | 2.92 | 2.03 | 1.85 | 12.56 | 3.87 | 3.23 |
| TWW referral rate (skin) | 7954 | 27.1 | 31.9 | 50.3 | 2.67 | 2.45 | 2.10 | 8.59 | 5.55 | 4.11 |
| TWW referral rate (breast) | 7954 | 45.0 | 20.1 | 56.1 | 1.98 | 1.78 | 1.68 | 4.07 | 3.02 | 2.69 |
| Outcome indicators | ||||||||||
| TWW conversion rate | 7954 | 64.8 | 30.6 | 75.6 | 1.92 | 1.55 | 1.44 | 3.93 | 2.31 | 2.01 |
| TWW detection rate | 7941 | 78.4 | 4.9 | 79.5 | 1.98 | 1.43 | 1.42 | 4.25 | 1.99 | 1.95 |
| Emergency route to diagnosis | 7687 | 82.8 | 30.1 | 88.0 | 2.15 | 1.39 | 1.32 | 5.09 | 1.89 | 1.70 |
| Referred route to diagnosis | 7687 | 85.0 | 7.4 | 86.1 | 1.92 | 1.32 | 1.30 | 3.64 | 1.69 | 1.66 |
| Other route to diagnosis | 7687 | 74.8 | 12.5 | 77.9 | 2.13 | 1.50 | 1.47 | 5.11 | 2.18 | 2.08 |
RR, risk ratio; OR, odds ratio;
TWW, two-week wait.