| Mean | SD | Obs | SES |
---|---|---|---|---|
EQ-5D vs FSS groups | ||||
 Mild/no fatigue | 0.775 | 0.218 | 297 | 0.615 |
 Moderate fatigue | 0.641 | 0.233 | 369 | 0.803 |
 Severe fatigue | 0.454 | 0.3 | 357 |  |
 FFS total | 0.614 | 0.285 | 1023 |  |
 F-statistic | 131.84 | Prob < | 0.0001 |  |
 Bartlett’s chi2 | 40.065 | Prob < | 0.0001 |  |
SF-6D vs FSS groups | ||||
 Mild/no fatigue | 0.747 | 0.124 | 189 | 0.871 |
 Moderate fatigue | 0.639 | 0.099 | 225 | 0.879 |
 Severe fatigue | 0.552 | 0.083 | 193 |  |
 FFS total | 0.645 | 0.129 | 607 |  |
 F-statistic | 172.46 | Prob < | 0.0001 |  |
 Bartlett’s chi2 | 30.047 | Prob < | 0.0001 |  |
MSIS-8D vs FSS groups | ||||
 Mild/no fatigue | 0.764 | 0.115 | 202 | 0.739 |
 Moderate fatigue | 0.679 | 0.134 | 240 | 1.381 |
 Severe fatigue | 0.494 | 0.186 | 208 |  |
 FFS total | 0.646 | 0.184 | 650 |  |
 F-statistic | 180.71 | Prob < | 0.0001 |  |
 Bartlett chi2 | 51.434 | Prob < | 0.0001 |  |