Table 4.
Background data in 24 patients with fibromyalgia (FMS) and 27 healthy controls (CON) obtained from questionnaires and clinical examination, and significance level (P value) for group comparison (Mann-Whitney U test)
| Variables | FMS | CON | P value |
|---|---|---|---|
| Age (years | 57.0 (9.0) | 57.0 (9.0) | 0.800 |
| Height (m) | 1.65 (9.8) | 1.65 (6.0) | 0.743 |
| Weight (kg) | 68 (15) | 63 (13) | 0.091 |
| BMI (kg/m2) | 25.4 (6.6) | 23.5 (4.5) | 0.053 |
| BP diastolic (mm Hg) | 85 (10) | 82.1 (8.3) | 0.555 |
| BP systolic (mm Hg) | 133 (24) | 131 (16) | 0.494 |
| Pain duration (years) | 15.2 (8.2) | NA | |
| VAS overall (0–100) | 52 (39) | 0 (2) | <0.001 |
| Tender points (n) | 15.9 (1.4) | NA | |
| PPT-all sites (kPa) | 180 (112) | 326 (100) | <0.001 |
| HAD-Depression (0–21) | 6.0 (5.6) | 1.6 (1.8) | <0.001 |
| HAD-Anxiety (0–21) | 6.0 (7.0) | 3.4 (3.1) | 0.012 |
| SF36-PSC (0–100) | 30.0 (9.3) | 54.4 (4.5) | <0.001 |
| SF36-MSC (0–100) | 44.7 (18.5) | 51.2 (6.0) | 0.019 |
Data are presented as median (interquartile range)
Bold italic figures denote significant differences
BMI body mass index, BP blood pressure, HADS-Anxiety Hospital Anxiety and Depression Scale—anxiety subscale, HADS-Depression Hospital Anxiety and Depression Scale—depression subscale, NA not applicable, PPT-all sites pressure pain thresholds (mean for all sites), SF36-PCS Short-Form Health Survey 36-physical summary component, SF36-MSC Short-Form Health Survey 36-mental (psychological) summary component, VAS visual analogue scale