Table 2

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)
VariablesBetap valueBetap valueBetap valueBetap valueBetap valueBetap 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/week0.240.0000.000.8790.040.316−0.080.5180.010.6490.010.602
    Physical demands0.540.0000.510.0000.220.000
    Mental/emotional demands0.510.0000.200.0000.200.0000.480.000
    Lack of decision latitude0.120.0440.040.1780.230.069*0.220.0000.170.000
    Lack of autonomy/break control0.210.0000.080.0390.030.428
Added in step 2
    Age at T1−0.070.1870.050.0850.100.0070.070.5830.120.0000.010.626
Model summary
    Total adjusted R20.140.270.480.280.200.33
    Change from step 1 to step 2 in R20.
    Change from step 1 to step 20.1870.0850.0070.5830.0000.626
    F of regression equation12.6787.6063.426.1539.13119.55
    Significance of F0.0000.0000.0000.0000.0000.000