Table 1.
Demographic characteristics of the sample and intergroup comparisons.
| Women with fibromyalgia (n = 18) | Healthy controls (n = 16) | p value | |
|---|---|---|---|
| Age | 54.83 (8.99) | 58.44 (10.55) | 0.237 |
| Stature | 159.78 (6.62) | 160.06 (4.73) | 0.772 |
| Pain intensity (VAS 0-100) | 62.78 (17.76) | N/A | — |
| Duration of symptoms (years) | 17.75 (13.26) | N/A | — |
| FIQ-R | 58.71 (20.85) | N/A | — |
| Single-task condition | |||
| Overall sway index | 1.37 (0.93) | 1.37 (0.93) | 0.878 |
| Anterior/posterior sway index | 1.06 (0.46) | 1.66 (2.05) | 0.347 |
| Medial/lateral sway index | 1.43 (1.11) | 1.22 (1.17) | 0.237 |
| Dual-task condition | |||
| Overall sway index | 1.97 (1.17) | 1.52 (1.21) | 0.075 |
| Anterior/posterior sway index | 1.64 (0.62) | 1.24 (0.66) | 0.064 |
| Medial/lateral sway index | 1.62 (1.22) | 1.42 (1.37) | 0.198 |
Results are shown as mean (standard deviation). FIQ-R: revised version of the Fibromyalgia Impact Questionnaire; N/A: not applicable. p values refer to the Mann–Whitney U test.