Table 2.
Presence of self-reported comorbid conditions in each study group based on questionnaires. Data are presented as number (%) of participants with the specific comorbid condition.
| MYA N (%) |
MFP N (%) |
FM N (%) |
|
|---|---|---|---|
| IBS | 20 (25.0) | 37 (45.8) a | 53 (65.4) A, b |
| Depression | 22 (27.5) | 45 (55.6) A | 63 (77.8) A, b |
| Anxiety | 9 (11.3) | 34 (42.0) A | 31 (38.3) A |
| Somatic symptoms | 35 (43.8) | 63 (77.8) A | 75 (92.6) A, b |
| Pain catastrophizing | 10 (12.5) | 23 (28.8) a | 14 (17.3) |
| Perceived stress | 31 (38.8) | 56 (69.1) A | 60 (74.1) A |
| Insomnia | 25 (31.3) | 56 (69.1) A | 55 (67.9) A |
MYA: Myalgia; MFP: myofascial pain with referral; FM: fibromyalgia; IBS: Irritable bowel syndrome; Significance is indicated with a capital letter if p < 0.001 or with a lowercase letter if p < 0.05. A or a = significant compared to myalgia, B or b significant compared to myofascial pain with referral.