Age (year), mean (SD), (n = 188) | 53.6 (17.0) |
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Gender (n = 190) | |
Male, n (%) | 63 (33.2) |
Female, n (%) | 127 (66.8) |
Symptom duration (month), mean (SD), (n = 168) | 17.8 (36.9) |
4-item pain intensity measure (0–40), mean (SD), (n = 200) | 11.0 (8.6) |
SF-12v2® Health Survey Physical Component Summary score, mean (SD), (n = 183) | 43.6 (4.3) |
SF-12v2® Health Survey Mental Component Summary score, mean (SD), (n = 183) | 49.6 (1.7) |