From: The physical and mental health of Australian truck drivers: a national cross-sectional study
 | Whole cohort N = 1390 | Long-haul N = 549 (39.5%) | Short-haul N = 837 (60.2%) |  |  | |||
---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | Χ2 (df) | p | |
Body Mass Index | ||||||||
 Under or normal weight | 252 | 18.1% | 79 | 14.8% | 173 | 21.1% | 19.8 (2) | < 0.001 |
 Overweight | 350 | 25.2% | 119 | 22.2% | 229 | 28.0% |  |  |
 Obese | 755 | 54.3% | 337 | 63.0% | 416 | 50.9% |  |  |
 BMI- mean (SD) | 31.95 (6.99) | 33.10 (7.47) | 31.19 (6.56) |  |  | |||
Number of diagnosed health conditions | ||||||||
 No conditions | 346 | 24.9% | 133 | 24.7% | 212 | 25.7% | 0.7 (3) | 0.885 |
 1 condition | 364 | 26.2% | 139 | 25.8% | 222 | 26.9% |  |  |
 2 conditions | 248 | 17.8% | 102 | 18.9% | 146 | 17.7% |  |  |
  ≥ 3 conditions | 410 | 29.5% | 165 | 30.6% | 245 | 29.7% |  |  |
 Mean (SD) | 1.85 (1.85) | 1.86 (1.87) | 1.85 (1.85) |  |  | |||
Psychological distress | ||||||||
 None or low | 695 | 50.0% | 296 | 53.9% | 397 | 47.4% | 8.8 (2) | 0.012 |
 Moderate | 510 | 36.7% | 196 | 35.7% | 313 | 37.4% |  |  |
 Severe | 185 | 13.3% | 57 | 10.4% | 127 | 15.2% |  |  |
General Health | ||||||||
 Very good/Excellent | 437 | 31.4% | 169 | 30.8% | 268 | 32.0% | 0.3 (2) | 0.851 |
 Good | 538 | 38.7% | 212 | 38.6% | 323 | 38.6% |  |  |
 Poor/Fair | 415 | 29.9% | 168 | 30.6% | 246 | 29.4% |  |  |
Pain - intensity | ||||||||
 None | 523 | 37.6% | 198 | 36.1% | 324 | 38.7% | 4.9 (3) | 0.183 |
 Mild | 321 | 23.1% | 116 | 21.1% | 203 | 24.3% |  |  |
 Moderate | 398 | 28.6% | 172 | 31.3% | 225 | 26.9% |  |  |
 Severe | 148 | 10.6% | 63 | 11.5% | 85 | 10.2% |  |  |
Pain – duration | ||||||||
  < 3 months | 245 | 17.6% | 80 | 14.7% | 164 | 19.7% | 12.3 (2) | 0.006 |
 3–12 months | 131 | 9.4% | 50 | 9.2% | 81 | 9.7% |  |  |
  > 12 months | 482 | 34.7% | 218 | 40.0% | 262 | 31.5% |  |  |
Work ability | ||||||||
 Poor | 200 | 14.4% | 85 | 15.5% | 115 | 13.7% | 3.4 (3) | 0.334 |
 Moderate | 232 | 16.7% | 82 | 14.9% | 148 | 17.7% |  |  |
 Good | 565 | 40.6% | 217 | 39.5% | 346 | 41.3% |  |  |
 Excellent | 393 | 28.3% | 165 | 30.1% | 228 | 27.2% |  |  |
 Health related quality of life | mean | SD | mean | SD | mean | SD | t | p |
 – utility score - | 0.83 | 0.16 | 0.83 | 0.17 | 0.84 | 0.16 | 0.7 | 0.7 |
 EQ-VAS scale score | 72.2 | 19.8 | 72 | 20.5 | 72.4 | 19.4 | 0.4 | 0.209 |