Table 3.
Known group validity and sensitivity of EQ-5D-5L and SF-6Dv2
| Grouping variable | N | Mean (SD) | |
|---|---|---|---|
| EQ-5D-5L | SF-6Dv2 | ||
| Number of comorbidities | |||
| <= 2 | 173 | 0.73 (0.33) | 0.61 (0.25) |
| >2 | 205 | 0.69 (0.35) | 0.53 (0.27) |
| Mean difference | 0.04 | 0.08** | |
| RE | 1 | 8.32 | |
| Effect size | 0.11 | 0.33 | |
| Disease-targeted scales of KDQOL-36& | |||
| Symptoms | |||
| <= 73 | 192 | 0.58 (0.38) | 0.44 (0.26) |
| >73 | 186 | 0.85 (0.22) | 0.70 (0.18) |
| Mean difference | 0.27*** | 0.26*** | |
| RE | 1 | 1.86 | |
| Effect size | 0.87 | 1.19 | |
| Effects | |||
| <= 56 | 188 | 0.58 (0.39) | 0.43 (0.26) |
| >56 | 190 | 0.85 (0.21) | 0.71 (0.17) |
| Mean difference | 0.26*** | 0.28*** | |
| RE | 1 | 2.23 | |
| Effect size | 0.84 | 1.26 | |
| Burden | |||
| <= 19 | 191 | 0.60 (0.39) | 0.45 (0.27) |
| >19 | 187 | 0.83 (0.23) | 0.69 (0.19) |
| Mean difference | 0.23*** | 0.23*** | |
| RE | 1 | 1.76 | |
| Effect size | 0.73 | 1.00 | |
SD Standard deviation, RE Relative efficiency
* p < 0.05, ** p < 0.01, *** p < 0.001 (t test of the difference between known groups)
& Cut-off values are median scores