Table 1 Baseline characteristics of participants by frequency of dairy consumption
Characteristics | Dairy consumption | Overall | ||||
|---|---|---|---|---|---|---|
Never | Monthly | 1–3 day/week | 4–6 day/week | Daily | ||
Number of participants | 10,395 | 3555 | 6757 | 1446 | 11,202 | 33,355 |
Women (%) | 55.6 | 52.3 | 53.7 | 56.6 | 56.8 | 55.3 |
Mean age (years) | 51.8(9.6) | 51.2(10.0) | 49.5(9.6) | 47.7(9.8) | 50.6(10.5) | 50.7(10.0) |
High school and above (%) | 26.1 | 35.8 | 41.2 | 49.8 | 41.6 | 36.4 |
Factory/Professional/sales (%) | 50.4 | 55.4 | 61.2 | 69.8 | 58.7 | 56.7 |
Married (%) | 92.0 | 92.5 | 94.6 | 94.9 | 92.7 | 92.9 |
Household income ≥ 20,000 (yuan) (%) | 51.6 | 62.1 | 67.4 | 70.2 | 63.8 | 60.8 |
Regular food consumptiona (%) | ||||||
Eggs | 47.5 | 43.2 | 41.2 | 40.0 | 66.0 | 51.7 |
Fresh fruit | 47.5 | 41.3 | 50.4 | 50.1 | 67.3 | 54.2 |
Fresh vegetables | 98.8 | 98.0 | 96.5 | 94.9 | 98.9 | 98.1 |
Soybean | 6.8 | 4.9 | 4.6 | 6.4 | 9.9 | 7.2 |
Red meat | 61.0 | 62.0 | 54.0 | 53.8 | 68.5 | 61.9 |
Poultry | 1.3 | 1.7 | 3.9 | 2.1 | 1.9 | 2.1 |
Current drinking in menb (%) | 53.7 | 45.4 | 43.7 | 47.0 | 48.8 | 48.8 |
Current smoking in menb (%) | 65.6 | 58.6 | 54.2 | 54.1 | 57.2 | 59.2 |
MET (MET-hr/day) | 15.2(10.1) | 15.4(10.6) | 17.0(10.9) | 19.9(11.4) | 17.6(10.1) | 16.6(10.4) |
BMI (Kg/m2) | 26.3(3.7) | 25.9(3.7) | 25.5(3.4) | 25.0(3.4) | 25.4(3.6) | 25.7(3.6) |
SBP (mmHg) | 132.3(22.5) | 130.4(21.5) | 128.9(21.5) | 126.3(19.8) | 128.2(20.9) | 129.7(21.6) |
DBP (mmHg) | 78.9(10.9) | 77.8(11.1) | 77.6(10.8) | 76.5(10.5) | 77.6(10.5) | 77.6(10.8) |
Random glucosec (mmol/L) | 6.4(2.4) | 6.4(2.9) | 6.2(2.4) | 6.0(2.1) | 6.4(2.8) | 6.3(2.6) |
Family history of MI (%) | 5.2 | 5.0 | 4.7 | 5.5 | 6.5 | 5.5 |