| Frequency of alcohol intake (day/week) | P for trenda | |||
---|---|---|---|---|---|
 | 0 | ≤3 | 4-6 | 7 |  |
 | (n = 149) | (n = 294) | (n = 169) | (n = 287) |  |
Age (year)b | 45.0 (38.0–55.0) | 41.5 (36.0–52.3) | 48.0 (38.0–55.0) | 51.0 (42.0–57.0) | < 0.001 |
Education (%) | Â | Â | Â | Â | Â |
  ≥12 years | 35.6 | 59.5 | 53.3 | 38.7 | 0.135 |
Occupation (%) | Â | Â | Â | Â | Â |
  Non office work | 11.4 | 24.1 | 23.1 | 20.2 | 0.234 |
Smoking status (%) | Â | Â | Â | Â | Â |
  Never smoker | 39.6 | 39.1 | 40.2 | 27.2 | 0.003 |
  Ex smoker | 9.4 | 15.6 | 11.2 | 12.2 | 0.976 |
  Current smoker | 51.0 | 45.2 | 48.5 | 60.6 | 0.004 |
BMI (kg/m2)b | 23.8 (21.6–26.1) | 23.8 (21.7–26.0) | 23.6 (22.1–25.5) | 22.8 (20.9–25.0) | < 0.001 |
Physical activity (%) | Â | Â | Â | Â | Â |
  ≥10min/day | 71.1 | 81.6 | 78.7 | 80.1 | 0.166 |
Depressive symptoms (%) | Â | Â | Â | Â | Â |
  SDS ≥45 | 36.9 | 28.2 | 29.6 | 32.4 | 0.759 |
Sleep duration (%) | Â | Â | Â | Â | Â |
  <7 hour | 53.7 | 54.4 | 53.3 | 37.3 | < 0.001 |
  7-8 hour | 32.2 | 33.3 | 33.7 | 44.3 | 0.005 |
  ≥8 hour | 14.1 | 12.2 | 13.0 | 18.5 | 0.089 |
Metabolic syndrome (%) | Â | Â | Â | Â | Â |
  Yes | 30.9 | 32.3 | 30.2 | 27.2 | 0.247 |
Calorie intake (%) | Â | Â | Â | Â | Â |
  1st (≤1519.0kcal) | 31.5 | 28.9 | 23.7 | 18.5 | 0.001 |
  2nd (1519.0-1877.0kcal) | 26.8 | 28.2 | 21.3 | 23.0 | 0.146 |
  3rd (1877.0-2296.9kcal) | 22.8 | 23.1 | 21.9 | 29.6 | 0.078 |
  4th (>2296.9kcal) | 18.8 | 19.7 | 33.1 | 28.9 | 0.001 |
Vitamin C intake (%) | Â | Â | Â | Â | Â |
  1st (≤56.0mg/d) | 24.2 | 22.1 | 24.3 | 28.6 | 0.139 |
  2nd (56.0-82.0mg/d) | 24.2 | 23.5 | 24.3 | 27.5 | 0.313 |
  3rd (82.0-121.5mg/d) | 31.5 | 25.2 | 26.0 | 20.9 | 0.026 |
  4th (>121.5mg/d) | 20.1 | 29.3 | 25.4 | 23.0 | 0.796 |
Zinc intake (%) | Â | Â | Â | Â | Â |
  1st (≤5.8mg/d) | 24.8 | 22.8 | 23.1 | 28.2 | 0.259 |
  2nd (5.8-7.3mg/d) | 22.8 | 28.2 | 23.7 | 23.3 | 0.572 |
  3rd (7.3-9.2mg/d) | 24.2 | 24.8 | 24.9 | 26.1 | 0.639 |
  4th (>9.2mg/d) | 28.2 | 24.1 | 28.4 | 22.3 | 0.302 |