From: PROMIS Fatigue short forms are reliable and valid in adults with rheumatoid arthritis
Fatigue 8a | Fatigue 4a | Rand36 | Fatigue NRS | 7d Fatigue | ||
---|---|---|---|---|---|---|
Fatigue 7a | r | 0.94 | 0.91 | 0.86 | 0.85 | 0.86 |
N | 548 | 546 | 388 | 347 | 546 | |
Fatigue 8a | r | 0.98 | 0.87 | 0.88 | 0.93 | |
N | 549 | 388 | 351 | 546 | ||
Fatigue 4a | r | 0.86 | 0.88 | 0.96 | ||
N | 387 | 348 | 544 | |||
Rand-36 Vitality | r | 0.81 | 0.82 | |||
N | 344 | 387 | ||||
Fatigue NRS (0–10) | r | 0.87 | ||||
N | 345 |