Table 2.
Patients' characteristics.
| CRPS (n = 20) | Healthy controls (n = 20) | |
|---|---|---|
| Age [y] (mean ± SD (range)) | 49 ± 12 (26-70) | 51 ± 12 (22-71) |
| Gender (female %) | 16 (80%) | 17 (85%) |
| BMI [kg/m2] (mean ± SD) | 27.5 ± 5.6 | 25.0 ± 4.8 |
| CRPS type | ||
| Type I | 11 (55%) | |
| Type II | 9 (45%) | |
| CRPS initial phenotype | ||
| Warm | 10 (50%) | |
| Cold | 5 (25%) | |
| Unclear | 5 (25%) | |
| Disease duration [mo] (mean ± SD (range)) | ||
| Since diagnosis | 3.4 ± 4.7 | |
| Since trauma | 6.9 ± 5.9 | |
| Pain (NRS: numerical rating scale (1-10)) | ||
| Mean (mean ± SD) | 5.4 ± 1.2 | |
| Max (mean ± SD) | 7.8 ± 1.3 | |
| CSS* (mean ± SD) | 11.1 ± 2.4 | |
| Symptoms | ||
| Edema | 15 (75%) | |
| Allodynia | 10 (50%) | |
| Questionnaires | ||
| GCPS† (mean ± SD) | 1.5 ± 1.1 | 0.1 ± 0.2 |
| NPSI‡ (mean ± SD) | 38.5 ± 16.1 | |
| BDI II§ (mean ± SD) | 16 ± 9.7 | 4.2 ± 4.0 |
| STAI-T‖ (mean ± SD) | 44.2 ± 5.9 | 42.1 ± 3.2 |
*
CRPS severity score, range 0 to 17.
†
Graded chronic pain scale—disability scores, range 0 to 100.
‡
Neuropathic pain symptom inventory, range 0 to 100.
§
Beck depression inventory II, range 0 to 63.
‖
State-trait anxiety inventory trait anxiety subscale, range 20 to 80.
BMI, body mass index; CRPS, complex regional pain syndrome.