Appendix 2.
Simple correlations of demographic variables, satisfaction with opening hours, and demand for additional opening hours (study group n = 596)
| Proportion satisfied with opening hours 2008/2009 | Proportion want extra hours 2008/2009 | Practice list size | Index of Multiple Deprivation | Quality and Outcomes Framework score | Proportion of patients >45 years old 2008/2009 | Proportion of graduate doctors | Change in satisfaction with opening hours 2008/08 | GPPS response rate 2007/2008 | GPPS response rate 2008/2009 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Satisfied 2008/2009 | 1.00 | |||||||||
| Want extra hours 2008/2009 | -0.74 | 1.00 | ||||||||
| practice size | -0.07 | 0.17 | 1.00 | |||||||
| IMD | 0.18 | -0.05 | -0.23 | 1.00 | ||||||
| QOF score | 0.10 | 0.00 | 0.21 | -0.11 | 1.00 | |||||
| Proportion patient >45 years | 0.19 | -0.23 | 0.15 | -0.43 | 0.19 | 1.00 | ||||
| Proportion UK graduate doctors | 0.02 | 0.02 | 0.31 | -0.31 | 0.16 | 0.32 | 1.00 | |||
| Change in satisfaction | 0.38 | -0.15 | -0.05 | -0.11 | 0.01 | 0.09 | 0.04 | 1.00 | ||
| Response rate 2007/2008 | 0.19 | -0.20 | 0.26 | -0.62 | 0.28 | 0.83 | 0.40 | 0.10 | 1.00 | |
| Response rate 2008/2009 | 0.20 | –0.20 | 0.28 | –0.58 | 0.27 | 0.79 | 0.39 | 0.09 | 0.91 | 1.00 |
Statistical significance of relationships: If r is over ±0.08, P is <0.05. If r is over ±0.20, P is <0.0001. However, when clustered at PCT level (robust): If r is over ±0.23, P<0.001, otherwise not significant. Relevance of relationships: If r is less than ±0.30 (weak) in italic font, if r is over ±0.60 (strong) in bold font. No material differences were found repeating the regressions after log-transformation of the variables to correct for skew of the residuals.