Table 1.
Demographic and clinical characteristics of the CRPS subjects.
| Subject | Gender | Age | Etiology | Pain location | Pain duration (mo) | VAS1 | VAS2 | Medication | Ethnicity | Pubertal status | Birth history |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | F | 17 | Knee injury | R knee | 2.5 | 7.5 | 7 | AC | wnh | Post | Unremarkable |
| 2 | F | 10 | Twisted ankle | R foot | 18.7 | 9 | 6 | AD | wnh | Pre | Unremarkable |
| 3 | M | 11 | Foot injury | L foot | 8 | 10 | 2 | AC, AD | wnh | Pre | Unremarkable |
| 4 | F | 15 | Crush injury foot | L ankle | 5 | 7 | 8 | AD | wnh | Post | Unremarkable |
| 5 | M | 15 | No known injury | R knee | 12 | 8 | 3 | AC, AD | wnh | Post | Unremarkable |
| 6 | F | 11 | Knee injury | L knee | 6.5 | 6 | 3 | AC, AD | wnh | Pre | Unremarkable |
| 7 | F | 16 | Fractured fibula | L ankle | 48 | 3.5 | 2 | AD | wnh | Post | Unremarkable |
| 8 | F | 17 | Foot/knee injury | L ankle | 19 | 4 | 2 | AD | wnh | Post | NICU for 2 weeks post-birth |
| 9 | F | 14 | Sprained ankle | L foot | 2.5 | 8.5 | 7.5 | AC | wnh | Post | Unremarkable |
| 10 | M | 13 | Post-surgery | L ankle | 6 | 6 | 2 | AC | wnh | Pre | Vaginal delivery to term; clavicle fracture at birth |
| 11 | F | 17 | Twisted ankle | R foot | 85 | 6 | 5 | AD | wnh | Post | Not mentioned |
| 12 | F | 13 | Ankle sprain | L foot | 13 | 7 | 3 | AC | wnh | Post | 35-week preterm delivery |
| Mean ± SEM | 14.1 0.72 | 18.9 (7.0) | 7.0 0.56 | 4.4 0.67 |
R = right; L = left. VAS1 (2) = pain rating at visit 1 (2). AC, anticonvulsants (pregabalin, gabapentin); AD, anti-depressants (amitriptyline, duloxetine).