Measures of association between self reported (SU) and recorded utilisation (RU)
| Wilcoxon rank test | ||||
|---|---|---|---|---|
| 2 weeks | 3 months | 6 months | 1 year | |
| p value | <0.001 | 0.028 | 0.004 | 0.510 |
| Spearman correlation coefficient | ||||
| 2 weeks | 3 months | 6 months | 1 year | |
| Uncorrected | 0.489 | 0.609 | 0.602 | 0.672 |
| Corrected | 0.602 | 0.646 | 0.620 | 0.678 |
| Coefficients and 95% CI for the simple linear regression of SU upon RU: | ||||
| 2 weeks | 3 months | 6 months | 1 year | |
| Intercept | 0.229 (0.178, 0.281) | 0.531 (0.384, 0.639) | 0.911 (0.647, 1.175) | 1.455 (0.943, 1.966) |
| Slope | 0.648 (0.559, 0.778) | 0.748 (0.681, 0.814) | 0.789 (0.724, 0.855) | 0.751 (0.687, 0.815) |