Table 1 Background data of subjects included in the study
Subject group | Gender ratio (F:M) | Mean age (range) | Mean general tension (VAS) (range) |
|---|---|---|---|
Controls (n = 44) | 35:9 | 39.0 (19–61) | 25.8 (0–84) |
Migraine (n = 22) | 20:2 | 40.2 (20–60) | 35.1 (1–87) |
Tension-type headache (n = 18) | 9:9 | 34.7 (19–52) | 25.1 (0–65) |
Fibromyalgia (n = 23) | 23:0 | 48.3 (32–63) | 47.3 (0–100) |
Chronic shoulder/neck pain (n = 29) | 29:0 | 41.1 (19–59) | 43.4 (8–89) |
Chronic pain patients (n = 64) | 59:4 | 42.9 (19–63) | 42.1 (0–100) |
Episodic pain patients/healthy controls (n = 72) | 57:15 | 38.7 (19–61) | 28.0 (0–87) |