Table 2.
Stress-Related Predictors for Characteristic Pain Intensity (CPI) and pain-related disability (DISS) at 1-Year and 2-Years Follow-Up Selected by the Lasso
| CPI | DISS | |||
|---|---|---|---|---|
| 1-Year Follow-Up | 2-Years Follow-Up | 1-Year Follow-Up | 2-Years Follow-Up | |
| Estimate/SE/P | Estimate/SE/P | Estimate/SE/P | Estimate/SE/P | |
| RMSE | 17.05 | 16.74 | 15.57 | 13.84 |
| TICS chronic stress | ||||
| Tendency to worry | 0.393/0.277/0.075 | −0.010/0.335/0.363 | 0.407/0.262/0.190 | 0.061/0.328/0.444 |
| Social isolation | 0.354/0.180/0.070 | 0.199/0.231/0.435 | 0.235/0.193/0.098 | 0.298/0.211/0.173 |
| Social conflicts | – | 0.155/0.281/0.282 | – | 0.165/0.262/0.358 |
| Work discontent | – | 0.056/0.250/0.548 | 0.079/0.172/0.521 | – |
| Lack of social recognition | – | 0.202/0.346/0.422 | – | – |
| Work overload | – | – | – | 0.065/0.164/0.721 |
| Pressure to succeed | – | – | – | – |
| Excessive demands at work | – | – | – | – |
| Social overload | – | – | – | – |
| I-SEE self-efficacy | ||||
| Internality | – | −0.204/0.205/0.301 | – | −0.255/0.216/0.217 |
| Self-concept | – | – | – | −0.321/0.216/0.108 |
| Social externality | – | – | – | −0.501/0.190/0.039 |
| Fatalistic externality | – | – | 0.113/0.151/0.130 | – |
| VE Vital exhaustion | 0.120/0.206/0.163 | – | – | – |
| PSS Perceived stress | – | 0.278/0.385/0.267 | – | 0.405/0.382/0.109 |
| Negative life-events | 5.431/3.530/0.139 | – | 4.462/3.382/0.173 | – |
Presented are the Refit Coefficients (Coefficient, SE, P-values) Including RMSE of Each Model (ie the Deviation of the Prediction from the Observed Values of CPI and DISS at Follow-Up)
Abbreviations: TICS, Trier Inventory of Chronic Stress; PSS, Perceived Stress Scale; VE, Vital Exhaustion; I-SEE, Inventory of Self-Efficacy and Externality; DISS, Disability Score; CPI, Characteristic Pain Intensity; SE, standard error; RMSE, root-mean-squared error.