Test-retest reliability of EQ-5D, patients with stable health state
| Period 1: admission to discharge | Period 2: discharge to 3 months | |||||
|---|---|---|---|---|---|---|
| No | Proportion of agreement | κ* | No | Proportion of agreement | κ* | |
| *Owing to small cell sizes categories 2 and 3 were collapsed; †owing to unequal number of rows and columns κ could not be calculated. | ||||||
| ICC, intraclass correlation. | ||||||
| EQ-5D dimension | ||||||
| Mobility | 11 | 8 (73%) | 0.24 | 33 | 29 (88%) | 0.53 |
| Self care | 11 | 11 (100%) | 1.0 | 34 | 33(97%) | NA† |
| Usual activities | 11 | 6 (55%) | 0.17 | 33 | 23 (70%) | 0.39 |
| Pain | 11 | 9 (82%) | 0.62 | 32 | 22 (69%) | 0.43 |
| Anxiety/depression | 11 | 11 (100%) | 1.0 | 34 | 22 (65%) | 0.24 |
| n | Mean difference (SD) test-retest | ICC | n | Mean difference (SD) test-retest | ICC | |
| VAS | 10 | 3.5 (9.1) | 0.82 | 33 | 4.6 10.1) | 0.80 |
| EQ 5D index | 11 | −1.8 (6.4) | 0.91 | 30 | 0.56 (14.7) | 0.54 |