Table 5 Linear regression stratified by work type
From: The physical and mental health of Australian truck drivers: a national cross-sectional study
Determinants of disutility | Long-haul drivers | Short-haul drivers | ||||||
|---|---|---|---|---|---|---|---|---|
Exp(B) | 95% CI | p | Exp(B) | 95% CI | p | |||
Age | ||||||||
  < 35 years | 1.00 | 0.97 | 1.03 | 0.866 | 1.02 | 1.00 | 1.04 | 0.120 |
 35–44 years | 1.00 | 0.97 | 1.03 | 0.831 | 0.99 | 0.97 | 1.02 | 0.578 |
 45–54 years | 1.01 | 0.99 | 1.04 | 0.293 | 1.00 | 0.98 | 1.02 | 0.881 |
  > 55 years | 1.00 |  |  |  | 1.00 |  |  |  |
Employment type | ||||||||
 Owner driver | 1.00 | 0.96 | 1.03 | 0.805 | 0.98 | 0.96 | 1.01 | 0.255 |
 Employee driver | 1.00 |  |  |  | 1.00 |  |  |  |
Work for > 1 company | ||||||||
 Yes | 0.99 | 0.96 | 1.02 | 0.467 | 1.00 | 0.98 | 1.03 | 0.713 |
 No | 1.00 |  |  |  | 1.00 |  |  |  |
Shift type | ||||||||
 Multiple trips between same base | 0.99 | 0.96 | 1.01 | 0.334 | 0.99 | 0.97 | 1.02 | 0.510 |
 Single long trip between 2 locations | 0.97 | 0.95 | 0.99 | 0.017 | 0.99 | 0.96 | 1.03 | 0.663 |
 Multiple trips between 2 locations | 1.00 |  |  |  | 1.00 |  |  |  |
Vehicle type | ||||||||
 Rigid truck and other | 1.01 | 0.97 | 1.06 | 0.597 | 0.97 | 0.96 | 0.99 | 0.005 |
 Road train | 1.00 | 0.95 | 1.04 | 0.893 | 0.99 | 0.96 | 1.03 | 0.657 |
 B Double | 1.01 | 0.97 | 1.05 | 0.620 | 0.98 | 0.96 | 1.00 | 0.081 |
 Articulated truck | 1.00 |  |  |  | 1.00 |  |  |  |
Payment type | ||||||||
 Other | 1.02 | 0.98 | 1.07 | 0.376 | 1.02 | 0.98 | 1.05 | 0.320 |
 Per trip/delivery | 1.02 | 0.99 | 1.05 | 0.252 | 1.00 | 0.96 | 1.03 | 0.896 |
 Single time pay | 1.02 | 0.98 | 1.06 | 0.434 | 0.99 | 0.97 | 1.01 | 0.342 |
 Km rate | 1.00 | 0.98 | 1.03 | 0.753 | 1.03 | 0.98 | 1.08 | 0.294 |
 Flat rate | 1.00 |  |  |  | 1.00 |  |  |  |
Working hours | ||||||||
  ≤ 40 h | 1.01 | 0.99 | 1.04 | 0.190 | 0.98 | 0.95 | 1.00 | 0.038 |
  > 60 h | 1.00 | 0.96 | 1.04 | 0.921 | 1.01 | 0.99 | 1.03 | 0.537 |
 41–60 h | 1.00 |  |  |  | 1.00 |  |  |  |
BMI | ||||||||
 Obese | 1.00 | 0.98 | 1.03 | 0.795 | 1.03 | 1.01 | 1.05 | 0.015 |
 Overweight | 1.01 | 0.97 | 1.04 | 0.720 | 1.02 | 1.00 | 1.05 | 0.038 |
 Under or normal weight | 1.00 |  |  |  | 1.00 |  |  |  |
Diagnosed conditions | ||||||||
 1 condition | 1.06 | 1.04 | 1.09 | < 0.001 | 1.06 | 1.03 | 1.08 | < 0.001 |
 2 conditions | 1.11 | 1.08 | 1.15 | < 0.001 | 1.08 | 1.05 | 1.10 | < 0.001 |
  ≥ 3 conditions | 1.16 | 1.13 | 1.19 | < 0.001 | 1.16 | 1.14 | 1.19 | < 0.001 |
 No conditions | 1.00 |  |  |  | 1.00 |  |  |  |