Table 3 Absolute differences between conventional and patient perceived change (with and without adjustment for recall bias) and the number of patients with this difference greater than a minimal clinically important difference (MCID) in utility of 0.081.
| Â | Utility mean (sd) | VAS mean (sd) | > MCID number (%) |
|---|---|---|---|
No adjustment for recall bias | 0.363 (0.273) | 22.3 (16.6) | 84 (83.2%) |
With adjustment for recall bias | 0.021 (0.066) | 3.5 (8.6) | 8 (7.9%) |