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Table 2 Baseline general characteristics of the study population
| N (%) or mean (SD) | ||||||
|---|---|---|---|---|---|---|
| 20–29 years old | 30–39 years old | |||||
| Total | Day workers | Shift workers | Total | Day workers | Shift workers | |
| 730 (100.0) | 174 (23.8) | 556 (76.2) | 204 (100.0) | 135 (66.2) | 69 (33.8) | |
| Alcohol consumption | ||||||
| Healthy drinking | 702 (96.2) | 170 (97.7) | 532 (95.7) | 199 (97.5) | 130 (96.3) | 69 (100) |
| Unhealthy drinking a | 28 (3.8) | 4 (2.3) | 24 (4.3) | 5 (2.5) | 5 (3.7) | 0 (0) |
| Exercise | ||||||
| Basic b | 239 (32.7) | 59 (33.9) | 180 (32.4) | 83 (40.7) | 53 (39.3) | 30 (43.5) |
| Insufficient c | 73 (10.0) | 18 (10.3) | 55 (9.9) | 38 (18.6) | 27 (20.0) | 11 (15.9) |
| Sufficient d | 418 (57.3) | 97 (55.7) | 321 (57.7) | 83 (40.7) | 55 (40.7) | 28 (40.6) |
| Tenure (years) | 1.3 (2.0) | 1.9 (2.5) | 1.1 (1.8) | 10.4 (4.7) | 10.4 (5.1) | 10.5 (4.0) |
| Waist circumference (cm) | 68.7 (4.2) | 68.4 (4.0) | 68.8 (4.3) | 70.3 (3.9) | 70.1 (3.7) | 70.7 (4.2) |
| Abdominal obesity e | 10(1.4) | 0 (0) | 10 (1.8) | 6 (2.9) | 3 (2.2) | 3 (4.3) |
