Baseline characteristics of the subjects at their first health examination, grouped according to type of job schedule
| Job schedule type at entry year | |||||||
| Day | Shift | Total | |||||
| Mean | SD | Mean | SD | Mean | SD | p Value | |
| Total serum cholesterol (mg/dl) | 188.0 | 35.4 | 187.9 | 35.2 | 188.0 | 35.3 | 0.994 |
| Age (years) | 36.2 | 10.7 | 36.9 | 9.4 | 36.5 | 10.2 | 0.003 |
| Body mass index (kg/m2) | 23.5 | 2.9 | 23.3 | 3.0 | 23.4 | 2.9 | 0.001 |
| Glycated haemoglobin A1c (%) | 4.71 | 0.57 | 4.65 | 0.53 | 4.68 | 0.56 | <0.001 |
| Creatinine (mg/dl) | 0.90 | 0.29 | 0.87 | 0.15 | 0.89 | 0.24 | <0.001 |
| Aspartate aminotransferase (IU/l) | 22.2 | 17.7 | 22.4 | 10.4 | 22.3 | 15.2 | 0.003 |
| γ-Glutamyl transpeptidase (IU/l) | 32.5 | 40.6 | 32.9 | 38.5 | 32.7 | 39.7 | 0.133 |
| Uric acid (mg/dl) | 5.68 | 1.21 | 5.61 | 1.26 | 5.65 | 1.23 | 0.009 |
| % | % | % | p Value | ||||
| Drinking habit (everyday) | 37.4% | 47.2% | 41.4% | <0.001 | |||
| Smoking habit (smoker) | 57.6% | 67.9% | 61.8% | <0.001 | |||
| Regular exercise (absence) | 42.4% | 46.8% | 44.2% | <0.001 | |||
| No of subjects | 4079 | 2807 | 6886 | ||||