Table 1.
Demographic and psychophysical details of subjects.
|
HC (n = 17) |
CP (n = 17) |
||||||
|---|---|---|---|---|---|---|---|
| Mean | SD | Range | Mean | SD | Range | p | |
| Sex | 8M 9F | 7M 10F | 0.73 | ||||
| Age (years) | 41.8 | 12.5 | (24–65) | 42.5 | 10.8 | (21–60) | .86 |
| Weight (kg) | 59.8 | 12.9 | (38–84) | 59.9 | 13.2 | (48–96) | 0.98 |
| Height (cm) | 165.7 | 10.0 | (151–183) | 162.1 | 8.2 | (151–177) | 0.26 |
| BMI | 21.5 | 2.4 | (15.6–25.1) | 22.6 | 3.0 | (19.5–30.6) | 0.2 |
| Pain duration (years) | – | – | – | 9.3 | 7.8 | (0.58–30) | |
| VAS (mm) | 0.1 | 0.2 | (0–1) | 53.4 | 27.4 | (6–100) | <0.0005 |
| Threshold at VAS = 60 (°C) | 46.7 | 1.4 | (45.0–50.2) | 44.9 | 2.4 | (38.9–48.9) | 0.015 |
| PD-Qb | 0.08 | 0.08 | (0–1) | 17.8 | 8.2 | (0–29) | <0.0005 |
| PCSa | 0 | 0 | (0) | 32.7 | 12.0 | (0–47) | <0.0005 |
| BDI | 3.2 | 4.8 | (0–18) | 17.9 | 12.8 | (0–42) | <0.0005 |
| SF-MPQ | 0.2 | 0.5 | (0–2) | 15.3 | 9.1 | (3–35) | <0.0005 |
HC: healthy control; CP: patients with chronic pain; BMI: body mass index; VAS: visual analog scale; PD-Q: PainDETECT questionnaire; PCS: Pain Catastrophizing Scale; BDI: Beck Depression Inventory; SF-MPQ: Short-Form McGill Pain Questionnaire.
an = 11 for HC.
bn = 12 for HC.