Risk subgroups | CPG points (scale range 0–100) | CPI n=51 | DISS n=51 |
1. Low risk | 0–29 | 39 | 46 |
2. Medium risk | 30–49 | 8 | 4 |
3. High risk | 50–69 | 3 | 0 |
4. Very high risk | 70–100 | 1 | 1 |
CPG, Chronic Pain Grade questionnaire; CPI, characteristic pain intensity; DISS, subjective pain disability