Discriminant validity: AUC for risk subgroups based on CPG scales characteristic pain intensity (CPI) and subjective pain disability (DISS)
| Risk subgroups | AUC (95% CI) | ||
| CPI | DISS | ||
| RSI | 1 vs 2/3/4 | 0.92 (0.85 to 1.0) | 0.88 (0.71 to 1.0) |
| 1/2 vs 3/4 | 0.97 (0.93 to 1.0) | 0.48 (0.33 to 0.62) | |
| 1/2/3 vs 4 | – | – | |
| RPI-SSE | 1 vs 2/3/4 | 0.82 (0.70 to 0.95) | 0.71 (0.50 to 0.91) |
| 1/2 vs 3/4 | 0.90 (0.71 to 1.0) | 0.44 (0.27 to 0.61) | |
| 1/2/3 vs 4 | – | – | |
| RPI-SS | 1 vs 2/3/4 | 0.90 (0.80 to 0.99) | 0.85 (0.70 to 1.0) |
| 1/2 vs 3/4 | 0.97 (0.92 to 1.00) | 0.65 (0.49 to 0.80) | |
| 1/2/3 vs 4 | – | – | |
| RPI-SP | 1 vs 2/3/4 | 0.93 (0.85 to 1.0) | 0.77 (0.56 to 0.99) |
| 1/2 vs 3/4 | 0.98 (0.94 to 1.0) | 0.36 (0.19 to 0.46) | |
| 1/2/3 vs 4 | – | – | |
| RPI-SMC | 1 vs 2/3/4 | 0.87 (0.76 to 0.98) | 0.69 (0.45 to 0.94) |
| 1/2 vs 3/4 | 0.91 (0.80 to 1.0) | 0.20 (0.07 to 0.33) | |
| 1/2/3 vs 4 | – | – | |
RSI, Risk Stratification Index as well as RPI, Risk Prevention Index—Social; RPI-SP, pain experience; RPI-SS, distress; RPI-SSE, social environment; RPI-SMC,medical environment.