Associations between standardised antibiotic prescribing volume and predictor variables.
| Variable | Unstandardised regression coefficient, B | 95% CI |
|---|---|---|
| Practice characteristics | ||
| Location | ||
| North of England | 0.12 | 0.11 to 0.13 |
| Midlands | 0.07 | 0.06 to 0.08 |
| South of England = reference variable | Not applicable | Not applicable |
| Longer appointment duration | –0.12 | –0.14 to –0.10 |
| GP sex: female | –0.11 | –0.12 to –0.10 |
| GP country of qualification: UK | –0.06 | –0.07 to –0.05 |
| GP age: <45 years | –0.08 | –0.09 to –0.07 |
| Training practice | –0.05 | –0.06 to –0.04 |
| Group practice | –0.02 | –0.03 to –0.01 |
| Practice list size | –0.002 | –0.003 to 0.000 |
| List per full-time equivalent GP | 0.002 | –0.003 to 0.008 |
| Practice population characteristics | ||
| Patient morbidity: limiting long-term illness | 1.21 | 1.13 to 1.31 |
| Patient ethnicity: white | 0.15 | 0.13 to 0.17 |
| Index of Multiple Deprivation 2004 score | 0.001 | 0.001 to 0.002 |