Table 5.
Prediction models between workload, psychosocial work stressors, and the number of anatomical pain regions stratified by baseline gender.
| Outcome and Exposure Variables | Crude Models | Baseline Adjusted Models * | Fully Adjusted Models ** | |||
|---|---|---|---|---|---|---|
| B (95% CI) | p-Value | B (95% CI) | p-Value | B (95% CI) | p-Value | |
| Men | ||||||
| Prediction model 1, outcome: number of ARP at follow-up | ||||||
| Predictor: baseline mechanical exposure index | 0.10 (0.09 to 0.13) | <0.001 | 0.02 (0.02 to 0.03) | <0.001 | 0.02 (0.01 to 0.03) | <0.001 |
| Predictor: baseline physical exposure index | 0.12 (0.10 to 0.14) | <0.001 | 0.01 (−0.03 to 0.04) | 0.782 | 0.01 (−0.03 to 0.05) | 0.603 |
| Predictor: baseline job demands | 0.55 (0.43 to 0.66) | <0.001 | 0.18 (0.16 to 0.19) | <0.001 | 0.11 (0.09 to 0.13) | <0.001 |
| Predictor: baseline job control | −0.25 (−0.39 to −0.11) | <0.001 | −0.06 (−0.08 to 0.04) | <0.001 | −0.07 (−0.09 to −0.03) | <0.001 |
| Predictor: baseline job support | −0.56 (−0.69 to −0.45) | <0.001 | −0.13 (−0.16 to −0.11) | <0.001 | −0.02 (−0.04 to 0.01) | 0.180 |
| Women | ||||||
| Prediction model 1, outcome: number of ARP at follow-up | ||||||
| Predictor: baseline mechanical exposure index | 0.19 (0.16 to 0.22) | <0.001 | 0.03 (0.03 to 0.04) | <0.001 | 0.13 (0.08 to 0.17) | <0.001 |
| Predictor: baseline physical exposure index | 0.14 (0.10 to 0.17) | <0.001 | 0.01 (0.00 to 0.02) | 0.010 | −0.01 (−0.07 to 0.05) | 0.680 |
| Predictor: baseline job demands | 0.65 (0.48 to 0.81) | <0.001 | 0.26 (0.07 to 0.45) | 0.007 | 0.12 (0.09 to 0.15) | <0.001 |
| Predictor: baseline job control | −0.47 (−0.67 to −0.27) | <0.001 | −0.25 (−0.48 to −0.01) | 0.044 | 0.10 (0.06 to 0.14) | <0.001 |
| Predictor: baseline job support | −0.63 (−0.82 to −0.43) | <0.001 | −0.34 (−0.56 to −0.11) | 0.004 | 0.12 (0.09 to 0.16) | <0.001 |
| Men | ||||||
| Prediction model 2, outcomes: workload and psychosocial work stressors at follow-up | ||||||
| Prediction model 2, outcome: mechanical exposure index at follow-up | ||||||
| Predictor: baseline number of ARP | 0.42 (0.41 to 0.44) | <0.001 | 0.02 (0.01 to 0.03) | <0.001 | 0.01 (−0.01 to 0.02) | 0.284 |
| Prediction model 2, outcome: physical exposure index at follow-up | ||||||
| Predictor: baseline number of ARP | 0.23 (0.22 to 0.24) | <0.001 | 0.02 (0.00 to 0.01) | <0.001 | 0.02 (0.01 to 0.03) | <0.001 |
| Prediction model 2, outcome: job demands at follow-up | ||||||
| Predictor: baseline number of ARP | 0.03 (0.03 to 0.04) | <0.001 | 0.01 (0.00 to 0.01) | 0.029 | −0.01 (−0.01 to −0.00) | 0.002 |
| Prediction model 2, outcome: job control at follow-up | ||||||
| Predictor: baseline number of ARP | −0.01 (−0.01 to −0.00) | <0.001 | −0.01 (−0.01 to −0.00) | 0.042 | 0.01 (0.00 to 0.01) | <0.001 |
| Prediction model 2, outcome: job support at follow-up | ||||||
| Predictor: baseline number of ARP | −0.03 (−0.04 to −0.03) | <0.001 | −0.01 (−0.01 to −0.01) | <0.001 | −0.01 (−0.01 to −0.01) | 0.013 |
| Women | ||||||
| Prediction model 2, outcomes: workload and psychosocial work stressors at follow-up | ||||||
| Prediction model 2, outcome: mechanical exposure index at follow-up | ||||||
| Predictor: baseline number of ARP | 0.23 (0.22 to 0.24) | <0.001 | 0.05 (0.05 to 0.06) | <0.001 | 0.05 (0.04 to 0.05) | <0.001 |
| Prediction model 2, outcome: physical exposure index at follow-up | ||||||
| Predictor: baseline number of ARP | 0.09 (0.08 to 0.09) | <0.001 | −0.01 (−0.02 to 0.00) | <0.001 | −0.01 (−0.02 to 0.00) | <0.001 |
| Prediction model 2, outcome: job demands at follow-up | ||||||
| Predictor: baseline number of ARP | 0.02 (0.02 to 0.02) | <0.001 | 0.01 (0.00 to 0.01) | <0.001 | 0.01 (0.00 to 0.01) | <0.001 |
| Prediction model 2, outcome: job control at follow-up | ||||||
| Predictor: baseline number of ARP | −0.01 (−0.01 to −0.01) | <0.001 | −0.00 (−0.01 to 0.00) | 0.158 | 0.01 (0.00 to 0.01) | <0.001 |
| Prediction model 2, outcome: job support at follow-up | ||||||
| Predictor: baseline number of ARP | −0.03 (−0.03 to −0.02) | <0.001 | −0.01 (−0.01 to −0.01) | <0.001 | −0.01 (−0.01 to −0.01) | <0.001 |
ARP = anatomical regions with pain; B = regression coefficients; CI = confidence intervals. * Model adjusted for baseline physical workload, psychosocial work environment, and number of ARP; ** Model adjusted for baseline age, education, smoking, alcohol intake, psychical activity, distress, and baseline workload, psychosocial work stressors, and the number of ARP.