Table 1.
Demographics and clinical data.
| Controls (n = 48) | FM (n = 44) | P | |
|---|---|---|---|
| Female | 38 (79%) | 40 (91%) | 0.117 |
| Age (year) | 50.8 ± 7.2 | 50.7 ± 6.5 | 0.969 |
| Education (year) | 15.3 ± 2.7 | 13.9 ± 2.2 | 0.002 |
| Disease duration (year) | – | 3.9 ± 1.2 | – |
| Average pain intensity | – | 5.9 ± 2.4 | – |
| TTP | 4.7 ± 4.2 | 14.4 ± 3.0 | < 0.001 |
| TTS | 5.9 ± 6.1 | 26.5 ± 9.3 | < 0.001 |
| WPI | 1.4 ± 2.1 | 10.3 ± 4.1 | < 0.001 |
| SSS | 2.6 ± 2.0 | 8.0 ± 2.1 | < 0.001 |
| Fatigue = 0 | 22 (50%) | 2 (5%) | < 0.001 |
| Fatigue = 1 | 18 (41%) | 10 (24%) | |
| Fatigue = 2 | 4 (9%) | 14 (33%) | |
| Fatigue = 3 | 0 (0%) | 16 (38%) | |
| Cognitive symptoms = 0 | 20 (42%) | 3 (7%) | < 0.001 |
| Cognitive symptoms = 1 | 21 (48%) | 9 (21%) | |
| Cognitive symptoms = 2 | 3 (7%) | 21 (50%) | |
| Cognitive symptoms = 3 | 0 (0%) | 9 (21%) | |
| Unrefreshed sleep = 0 | 19 (43%) | 0 (0%) | < 0.001 |
| Unrefreshed sleep = 1 | 22 (50%) | 5 (12%) | |
| Unrefreshed sleep = 2 | 3 (7%) | 21 (50%) | |
| Unrefreshed sleep = 3 | 0 (0%) | 16 (38%) | |
| Headache = 1 | 16 (36%) | 38 (91%) | < 0.001 |
| Abdominal pain = 1 | 7 (16%) | 14 (33%) | 0.060 |
| Depression = 1 | 6 (14%) | 25 (60%) | < 0.001 |
| BDI−I | 5.2 ± 4.8 | 15.7 ± 9.9 | < 0.001 |
| FIQR | 6.6 ± 8.8 | 50.9 ± 21.7 | < 0.001 |
Data are mean ± SD or number (%).
FM fibromyalgia, TTP total tender points, TTS total tender point score, WPI widespread pain index, SSS symptom severe score, BDI–I Beck's Depression Inventory version 1, FIQR Revised fibromyalgia impact questionnaire.