Final models of stepwise multiple regression analyses on cross sectional data
| Coach drivers (n=327) | Public bus drivers (n=930) | Construction workers (n=402) | Ambulance workers (n=53) | Hospital nurses (n=922) | Truck drivers (n=1186) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variables | Beta | p value | Beta | p value | Beta | p value | Beta | p value | Beta | p value | Beta | p value |
| Need for recovery as dependent variable, and no. work hours/week, physical demands, mental/emotional demands, lack of decision latitude, lack of autonomy/break control, and age as independent variables. | ||||||||||||
| *Lost significance in second step. | ||||||||||||
| Work demands | ||||||||||||
| Entered in step 1 | ||||||||||||
| No. work hours/week | 0.24 | 0.000 | 0.00 | 0.879 | 0.04 | 0.316 | −0.08 | 0.518 | 0.01 | 0.649 | 0.01 | 0.602 |
| Physical demands | 0.54 | 0.000 | 0.51 | 0.000 | 0.22 | 0.000 | ||||||
| Mental/emotional demands | 0.51 | 0.000 | 0.20 | 0.000 | 0.20 | 0.000 | 0.48 | 0.000 | ||||
| Lack of decision latitude | 0.12 | 0.044 | 0.04 | 0.178 | 0.23 | 0.069* | 0.22 | 0.000 | 0.17 | 0.000 | ||
| Lack of autonomy/break control | 0.21 | 0.000 | 0.08 | 0.039 | 0.03 | 0.428 | ||||||
| Added in step 2 | ||||||||||||
| Age at T1 | −0.07 | 0.187 | 0.05 | 0.085 | 0.10 | 0.007 | 0.07 | 0.583 | 0.12 | 0.000 | 0.01 | 0.626 |
| Model summary | ||||||||||||
| Total adjusted R2 | 0.14 | 0.27 | 0.48 | 0.28 | 0.20 | 0.33 | ||||||
| Change from step 1 to step 2 in R2 | 0.01 | 0.00 | 0.01 | 0.00 | 0.01 | 0.00 | ||||||
| Change from step 1 to step 2 | 0.187 | 0.085 | 0.007 | 0.583 | 0.000 | 0.626 | ||||||
| F of regression equation | 12.67 | 87.60 | 63.42 | 6.15 | 39.13 | 119.55 | ||||||
| Significance of F | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | ||||||