Final multivariable model, 2007/2008, using negative binomial regression with log of list size as offset, after backward selection process
| Predictor | Slope (95% CI) | p Value (slope) |
| Index of multiple deprivation | 0.02 (0.01 to 0.03) | <0.0001 |
| Distance from practice to emergency department | −0.023 (−0.03 to −0.01) | <0.0001 |
| Practice list size | −0.0000 (−0.0000 to −0.0000) | 0.002 |
| Age (percentage 65+) | 0.008 (−0.002 to 0.018) | 0.12 |
| Caucasians (%) | 0.004 (0.001 to 0.007) | 0.001 |
| Male (%) | −1.44 (−3.48 to 0.59) | 0.17 |
| Percentage of respondents satisfied with phone access | −0.005 (−0.009 to −0.001) | 0.002 |
| Backward stepwise evictions | ||
| Variable | p Value when removed from model | |
| Total quality and outcomes framework patient experience points | 0.81 | |
| Percentage able to get an appointment within 2 days | 0.65 | |
| Total quality and outcomes framework organisational points | 0.50 | |
| Percentage satisfied with seeing a specific person | 0.40 | |
| Percentage able to book an appointment in advance | 0.38 | |
| Response rate | 0.18 | |
| Total quality and outcomes framework clinical points | 0.17 | |
| Percentage satisfied with opening hours | 0.78 | |