No. patients | 195 | 151 |
Mean age, yrs (SD) | 46.5 (11.3) | 46.9 (11.0) |
Caucasian, % | 92 | 91 |
Women, % | 94 | 94 |
Mean body mass index (SD) | 30.2 (7.5) | 30.5 (7.6) |
Duration of FM ≥ 5 yrs, % | 74 | 76 |
Self-reported sleep | | |
Sleep ≤ 6 h/night, % | 74 | 74 |
Awakening ≥ 3 times/night, % | 66 | 68 |
Sleep depth = light or very light, % | 78 | 81 |
How refreshing is your sleep? | | |
Mean (SD) | 77.0 (19.9) | 77.0 (19.6) |
Median (range) | 82.0 (1.0–100.0) | 80.0 (1.0–100.0) |
How sleepy do you usually feel in the morning? | | |
Mean (SD) | 24.4 (22.1) | 25.0 (22.6) |
Median (range) | 17.0 (0.0–100.0) | 19.0 (0.0–100.0) |
How sleepy do you usually feel in the evening? | | |
Mean (SD) | 31.9 (28.8) | 31.9 (29.5) |
Median (range) | 21.0 (0.0–100.0) | 21.0 (1.0–100.0) |
Mean PVAS, mm (SD) | 66.0 (16.5) | 66.4 (16.1) |
Median PVAS, mm (range) | 66.7 (6.4–100.0) | 66.9 (6.4–100.0) |
Daytime functioning, mean (SD) | (n = 191) | (n = 149) |
Functional outcome of sleep (range 5–20)* | 12.0 (3.5) | 11.7 (3.5) |
SF-36 Vitality domain (range 0–100)* | 28.7 (6.0) | 29.0 (6.0) |
Fibromyalgia Impact Questionnaire | | |
How tired have you been? (range 0–10)** | 8.0 (1.4) | 8.0 (1.4) |
How have you felt when you get up in the morning? (range 0–10)** | 8.0 (1.5) | 8.0 (1.4) |
Sleep and daytime sleepiness, mean (SD) | (n = 191) | (n = 149) |
Jenkins Scale for Sleep (range 0–20)† | 16.6 (3.4) | 16.8 (3.2) |
Epworth Sleepiness Scale (range 0–24)** | 11.2 (5.7) | 11.9 (5.6) |
Fatigue VAS (range 0–100)**, mean (SD) | (n = 195) | (n = 151) |
Overall | 69.7 (16.2) | 70.2 (15.7) |
Morning | 67.9 (18.1) | 68.2 (17.6) |
Afternoon | 68.3 (16.8) | 68.9 (16.5) |
Evening | 72.8 (16.2) | 72.9 (15.7) |