Final models of stepwise multiple regression analyses on prospective data
| Hospital nurses (n=611) Need for recovery, at one year follow up | Truck drivers (n=625) Need for recovery, at two years follow up | |||
|---|---|---|---|---|
| Baseline variables | Beta | p value | Beta | p value |
| Need for recovery after one or two years follow up (T2) as dependent variable, and no. work hours/week, physical demands, mental/emotional demands, lack of decision latitude, lack of autonomy/break control, age, and baseline need for recovery as independent variables. | ||||
| *Lost significance from first step. | ||||
| Work demands | ||||
| Entered in step 1 | ||||
| No. work hours/week | 0.03 | 0.363 | 0.02 | 0.626 |
| Physical demands | −0.03 | 0.331* | ||
| Mental/emotional demands | 0.07 | 0.031 | 0.02 | 0.631* |
| Lack of decision latitude | 0.01 | 0.846* | 0.01 | 0.894* |
| Lack of autonomy/break control | −0.01 | 0.894 | ||
| Added in step 2 | ||||
| Age at T1 | 0.07 | 0.018 | 0.02 | 0.625 |
| Added in step 3 | ||||
| Need for recovery at T1 | 0.65 | 0.000 | 0.59 | 0.000 |
| Model summary | ||||
| Total adjusted R2 | 0.46 | 0.36 | ||
| Change from step 2 to step 3 in R2 | 0.32 | 0.23 | ||
| Change from step 2 to 3 | 0.000 | 0.000 | ||
| F of regression equation | 87.53 | 60.47 | ||
| Significance of F | 0.000 | 0.000 | ||