Table 1.
Descriptive statistics
| Fibromyalgia (FM) | Musculoskeletal pain without fibromyalgia (MS) | Reference | Comparison (P-value)a | |||
|---|---|---|---|---|---|---|
| FM vs Ref | MS vs Ref | |||||
| Total | N (%) | 1 483 (100) | 18 808 (100) | 24 203 (100) | ||
| Women | N (%) | 1 275 (85.97) | 9 948 (52.89) | 11 860 (49.00) | 0.000 | 0.000 |
| Age | Mean (SD) | 52.43 (12.02) | 51.64 (15.56) | 45.99 (16.77) | 0.000 | 0.000 |
| Single | N (%) | 453 (30.55) | 6 340 (33.71) | 10 319 (42.63) | 0.000 | 0.000 |
| Education | 0.000 | 0.000 | ||||
| Primary school | N (%) | 716 (48.28) | 7 042 (37.44) | 6 647 (27.46) | ||
| High school | N (%) | 552 (37.22) | 7 936 (42.19) | 11 091 (45.82) | ||
| Higher | N (%) | 215 (14.50) | 3 830 (20.36) | 6 465 (26.71) | ||
| Audiometry (MTH) | Mean (SD) | 16.82 (13.19) | 17.65 (14.80) | 14.29 (13.86) | 0.000 | 0.000 |
| HADS-Ab | Mean (SD) | 6.38 (4.16) | 4.63 (3.43) | 3.57 (2.86) | 0.000 | 0.000 |
| HADS-Db | Mean (SD) | 5.07 (3.65) | 3.83 (3.15) | 2.81 (2.67) | 0.000 | 0.000 |
Reference = Ref = participants without fibromyalgia and musculoskeletal pain disorders
MTH = mean threshold of hearing based on pure tone audiometry at frequencies 0.5, 1, 2 and 4 kHz on both ears
HADS-A = self-reported questionnaire for symptoms of anxiety
HADS-D = self-reported questionnaire for symptoms of depression
aDescriptive comparison of categorical variables performed with chi-square and continuous variables with two-sided t-test
bMissing data from several participants on this variable. Applicable for FM, MSD and Ref