Table 5.
Comparison of characteristics of CRPS patients with single and multiple affected limbs
| Parameter | Total (N = 185) | Single (N = 96) | Multiple (N = 89) | Difference in % (95% CI) |
|---|---|---|---|---|
| Female—no. (%) | 160 (86.5) | 84 (87.5) | 76 (85.4) | 2.1 (−10.6;14.8) |
| First aff. limb arm—no. (%) n = 174 | 91 (52.3) | 50 (52.1) | 41 (52.6) | 0.5 (−14.4;15.4) |
| Disease duration—mean (SD) yr | 6.0 (6.0) | 4.1 (4.7t) | 8.1 (6.6) | 4.0 (2.3–.7) |
| Age at onset CRPS—mean (SD) year | 37.5 (15.4) | 40.7 (14.7) | 34.0 (14.7) | 6.7 (6.3;7.1) |
| Kind of trauma—no. (%) | ||||
| Soft tissue injury | 92 (49.7) | 43 (44.8) | 49 (55.1) | χ2 (df = 2) = 5.67 |
| Fracture limb/other | 48 (25.9) | 32 (33.3) | 16 (18.0) | P = 0.06 |
| Operation limb/other | 45 (24.3) | 21 (21.9) | 24 (27.0) | |
| Movement disorders—no. (%) | 121 (65.4) | 52 (54.2) | 69 (77.5) | 23.3 (10.1;36.5)a |
| Type sensory symptoms—no. (%) n = 165 | ||||
| Hypaesthesia/hypalgesia | 81 (49.1) | 43 (52.4) | 38 (45.8) | χ2 (df = 2) = 0.73 |
| Hyperaesthesia/hyperalgesia/allodynia | 41 (24.8) | 19 (23.2) | 22 (26.5) | P = 0.69 |
| Both | 43 (26.1) | 20 (24.4) | 23 (27.7) | |
aAdjusted for disease duration