Table 4.
Non-parametric estimates for seven fatigue instruments for the “Somewhat more (less)” and the “Much more (less)” fatigue comparison rating categories anchored to the “About the same fatigue” category.
| Fatigue instrument | About the same ↔ Somewhat more | About the same ↔ Somewhat less | About the same ↔ Much more | About the same ↔ Much less |
|---|---|---|---|---|
| FSS | 12.4 (3.7 – 21.1) | 20.2 (9.2 – 31.3) | 40.1 (28.5 – 51.7) | 41.2 (30.4 – 52.0) |
| VT | 11.9 (4.1 – 19.8) | 7.2 (−2.7 – 17.2) | 30.5 (20.1 – 40.9) | 30.3 (20.6 – 40.0) |
| MAF | 13.1 (5.9 – 20.4) | 17.6 (8.4 – 26.9) | 32.5 (22.8 – 42.1) | 41.5 (32.5 – 50.5) |
| MFI | 16.5 (10.2 – 22.7) | 11.8 (3.8 – 19.7) | 35.5 (27.2 – 43.8) | 31.2 (23.5 – 38.9) |
| FACIT–F | 13.7 (7.2 – 20.2) | 14.2 (5.9 – 22.5) | 29.4 (20.7 – 38.1) | 33.1 (25.1 – 41.2) |
| CFS | 6.6 (−0.99 – 14.1) | 6.7 (−2.8 – 16.3) | 20.5 (10.5 – 30.5) | 21.7 (12.4 – 31.0) |
| RS | 16.2 (6.9 – 25.5) | 13.1 (1.3 – 24.9) | 38.3 (25.9 – 50.7) | 42.8 (31.3 – 54.3) |
Legend. Results are means with 95% confidence intervals
Abbreviations. FSS: Fatigue Severity Scale, VT: Vitality scale of the MOS-SF36, MAF: Multidimensional Assessment of Fatigue, MFI: Multidimensional Fatigue Inventory, FACIT–F: Functional Assessment of Chronic Illness Therapy–Fatigue scale, CFS: Chalder Fatigue Scale, RS: 10-point Rating Scale.