Gender (N = 240) |
Male |
66 (27.5) |
Female |
174 (72.5) |
Age at onset of symptoms (years) (N = 239) |
Mean 43 years (range 12–78, SD 12.7) |
Duration of symptoms at recruitment (months) (N = 237) |
Median 29 months (range 0–297, IQR 39.7) |
Delay between onset and diagnosis (months) (N = 209) |
Median 6 months (range 0–129, IQR 13.4) |
Trigger (N = 236) |
Fracture |
66 (28.0) |
Soft tissue injury |
69 (29.2) |
Surgery |
56 (23.7) |
Spontaneous |
37 (15.7) |
Nerve injury |
5 (2.1) |
Electric injury |
1 (0.4) |
Other |
2 (0.8) |
First limb affected (N = 239) |
Right arm |
65 (27.2) |
Left arm |
50 (20.9) |
Right leg |
55 (23.0) |
Left leg |
69 (28.9) |
Hand dominance (original) (N = 160) |
Right |
133 (83.1) |
Left |
27 (16.9) |
Hand dominance (current) (N = 124) |
Right |
97 (78.2) |
Left |
27 (21.8) |
Second area (if any) affected (N = 30) |
Right arm |
3 (10.0) |
Left arm |
6 (20.0) |
Right leg |
10 (33.3) |
Left leg |
10 (33.3) |
Right eye and neck |
1 (3.3) |
Time between onset of symptoms in first limb and second area (months) (N = 26) |
Median 15 months (range 0–130, IQR 29.5) |