Number of practices which met outlier criteria in relation to accuracy curve or threshold line by quintiles of practice characteristics, with OR relative to middle quintile (5479 practices)
| First quintile | Second quintile | Third quintile | Fourth quintile | Fifth quintile | |||||||||||
| n | OR | 95% CI | n | OR | 95% CI | n | OR | n | OR | 95% CI | n | OR | 95% CI | ||
| Cancer incidence | High accuracy | 41 | 0.32 | (0.23 to 0.47) | 69 | 0.56 | (0.41 to 0.77) | 117 | 1 | 136 | 1.18 | (0.91 to 1.54) | 247 | 2.43 | (1.92 to 3.09) |
| Low accuracy | 232 | 2.96 | (2.29 to 3.84) | 131 | 1.50 | (1.13 to 1.99) | 91 | 1 | 91 | 1.0 | (0.74 to 1.35) | 49 | 0.52 | (0.36 to 0.74) | |
| High threshold | 144 | 0.66 | (0.52 to 0.83) | 185 | 0.89 | (0.71 to 1.11) | 204 | 1 | 209 | 1.03 | (0.83 to 1.27) | 186 | 0.89 | (0.72 to 1.11) | |
| Low threshold | 257 | 1.42 | (1.15 to 1.75) | 207 | 1.08 | (0.87 to 1.34) | 194 | 1 | 217 | 1.15 | (0.92 to 1.42) | 215 | 1.13 | (0.91 to 1.41) | |
| Patients aged 65+ years | High accuracy | 37 | 0.31 | (0.21 to 0.45) | 80 | 0.70 | (0.52 to 0.94) | 112 | 1 | 145 | 1.35 | (1.04 to 1.76) | 236 | 2.42 | (1.9 to 3.09) |
| Low accuracy | 219 | 2.24 | (1.75 to 2.87) | 137 | 1.29 | (0.99 to 1.68) | 110 | 1 | 89 | 0.80 | (0.6 to 1.07) | 39 | 0.33 | (0.23 to 0.48) | |
| High threshold | 122 | 0.52 | (0.41 to 0.67) | 207 | 0.98 | (0.79 to 1.21) | 212 | 1 | 218 | 1.05 | (0.85 to 1.29) | 169 | 0.76 | (0.61 to 0.95) | |
| Low threshold | 263 | 1.42 | (1.15 to 1.74) | 190 | 0.95 | (0.76 to 1.18) | 200 | 1 | 221 | 1.15 | (0.93 to 1.42) | 216 | 1.11 | (0.89 to 1.37) | |
| List size | High accuracy | 135 | 1.31 | (1.0 to 1.72) | 94 | 0.87 | (0.65 to 1.17) | 106 | 1 | 117 | 1.11 | (0.84 to 1.47) | 158 | 1.57 | (1.21 to 2.04) |
| Low accuracy | 16 | 0.12 | (0.07 to 0.21) | 71 | 0.57 | (0.42 to 0.77) | 119 | 1 | 179 | 1.60 | (1.25 to 2.05) | 210 | 1.94 | (1.52 to 2.48) | |
| High threshold | 126 | 0.58 | (0.46 to 0.74) | 188 | 0.92 | (0.74 to 1.15) | 200 | 1 | 203 | 1.02 | (0.82 to 1.26) | 211 | 1.07 | (0.86 to 1.32) | |
| Low threshold | 145 | 0.6 | (0.48 to 0.76) | 184 | 0.80 | (0.64 to 0.99) | 221 | 1 | 244 | 1.13 | (0.92 to 1.39) | 297 | 1.47 | (1.2 to 1.79) | |
| Socioeconomic status | High accuracy | 152 | 1.02 | (0.8 to 1.3) | 160 | 1.08 | (0.85 to 1.37) | 144 | 1 | 101 | 0.71 | (0.55 to 0.94) | 43 | 0.35 | (0.25 to 0.5) |
| Low accuracy | 97 | 0.77 | (0.58 to 1.01) | 113 | 0.90 | (0.69 to 1.18) | 119 | 1 | 135 | 1.23 | (0.95 to 1.6) | 123 | 1.38 | (1.06 to 1.81) | |
| High threshold | 198 | 1.11 | (0.89 to 1.38) | 211 | 1.19 | (0.96 to 1.49) | 175 | 1 | 185 | 1.14 | (0.91 to 1.43) | 134 | 0.98 | (0.77 to 1.25) | |
| Low threshold | 275 | 1.23 | (1.01 to 1.5) | 227 | 0.96 | (0.78 to 1.18) | 225 | 1 | 190 | 0.87 | (0.7 to 1.08) | 164 | 0.92 | (0.74 to 1.16) | |
| Age-standardised fast-track referral rate | High accuracy | 140 | 0.90 | (0.7 to 1.15) | 155 | 1.01 | (0.79 to 1.28) | 154 | 1 | 100 | 0.61 | (0.47 to 0.8) | 61 | 0.36 | (0.26 to 0.49) |
| Low accuracy | 58 | 0.54 | (0.39 to 0.76) | 108 | 1.07 | (0.8 to 1.42) | 102 | 1 | 134 | 1.36 | (1.03 to 1.78) | 193 | 2.09 | (1.61 to 2.69) | |
| High threshold | 520 | 8.09 | (6.43 to 10.18) | 249 | 2.64 | (2.07 to 3.36) | 110 | 1 | 39 | 0.33 | (0.23 to 0.48) | 9 | 0.07 | (0.04 to 0.15) | |
| Low threshold | 9 | 0.04 | (0.02 to 0.09) | 66 | 0.34 | (0.25 to 0.45) | 175 | 1 | 273 | 1.75 | (1.41 to 2.16) | 568 | 5.67 | (4.64 to 6.93) | |