Table 1. Demographic and clinical characteristics of study participants at baseline.
| Group 1 (n = 25) |
Group 2 (n = 25) |
Total (n = 50) |
|
|---|---|---|---|
| Age (years) | 50 ± 12.18 | 50 ± 12.27 | 50 ± 12.27 |
| Disease duration (years) | 8 ± 7.3 | 7.9 ± 7.1 | 7.9 ± 7.1 |
| FIQ total score (0 to 100) | 70 ± 17 | 63 ± 15 | 67 ± 16 |
| Sex (female/male) | 23/2 | 23/2 | 46/4 |
| Medication for pain (yes/no) | 21/4 | 21/4 | 42/8 |
| Self-reported comorbidity n (%) | |||
| Anxiety | 4 (16%) | 4 (16%) | 8 (16%) |
| Depression | 8 (32%) | 1 (4%) | 9 (18%) |
| Chronic Fatigue Syndrome | 2 (8%) | 5 (20%) | 7 (14%) |
| Temporomandibular joint disorder | 2 (8%) | 2 (8%) | 4 (8%) |
| Crohn’s disease, colitis | 4 (16%) | 3 (12%) | 7 (14%) |
Values are expressed as mean ± standard deviation. Group 1: continuous 40 Hz vibrotactile rhythmic sensory stimuli; Group 2: intermittent gamma frequency rhythmic sensory vibrotactile stimuli.