|  |  |  |  | Current regular drinkers | ||||
---|---|---|---|---|---|---|---|---|---|
 | Overall | Abstainers | Ex-regular drinkers | Occasional drinkers | All current regular | < 140 g/week | 140–279 g/week | 280–419 g/week | ≥ 420 g/week |
Number of participants | 201,039 | 40,657 | 16,990 | 76,415 | 66,977 | 24,171 | 18,182 | 12,306 | 12,318 |
Socio-demographic characteristics | |||||||||
 Mean age, years (SD) | 52.9 (10.9) | 57.1 (11.1) | 56.9 (10.3) | 51.0 (10.8) | 51.5 (10.2) | 51.6 (10.9) | 51.7 (10.2) | 50.8 (9.6) | 50.2 (9.5) |
 Urban area, % | 43.9 | 31.4 | 41.7 | 44.3 | 50.8 | 59.3 | 53.3 | 48.8 | 31.7 |
 Educational attainment > 6 years, % | 58.2 | 54.6 | 57.1 | 60.9 | 58.1 | 61.2 | 57.5 | 58.5 | 54.5 |
 Income > 20000 yuan/year, % | 45.7 | 42.0 | 45.1 | 46.7 | 46.8 | 47.8 | 46.3 | 45.5 | 46.9 |
 Married, % | 92.9 | 91.3 | 93.4 | 93.3 | 93.3 | 94.0 | 93.3 | 93.3 | 92.2 |
Lifestyle factors | |||||||||
 Regular smoking, % | 61.2 | 52.6 | 61.1 | 57.0 | 71.8 | 65.7 | 73.1 | 76.5 | 80.0 |
 Daily fresh fruit consumption, % | 22.8 | 24.7 | 24.7 | 25.0 | 21.1 | 25.2 | 20.3 | 17.7 | 15.7 |
 Physical activity, mean MET-h/d (SD) | 22.0 (15.2) | 21.1 (15.0) | 20.3 (14.4) | 22.5 (15.6) | 22.1 (14.8) | 21.9 (14.4) | 22.2 (14.8) | 22.3 (15.3) | 21.3 (15.1) |
 Daily tea drinking, % | 40.7 | 36.0 | 40.2 | 37.2 | 48.4 | 45.7 | 47.7 | 48.7 | 52.4 |
Physical measurements, mean (SD) | |||||||||
 SBP, mmHg | 133.0 (20.1) | 132.2 (21.6) | 134.3 (21.5) | 131.2 (18.8) | 134.4 (19.8) | 132.2 (18.9) | 134.6 (19.8) | 135.9 (20.0) | 138.0 (20.7) |
 DBP, mmHg | 79.3 (11.4) | 78.4 (11.5) | 79.9 (11.7) | 78.2 (10.9) | 80.4 (11.5) | 79.2 (11.1) | 80.5 (11.5) | 81.4 (11.6) | 82.4 (11.7) |
 BMI, kg/m2 | 23.5 (3.3) | 23.3 (3.2) | 24.0 (3.4) | 23.5 (3.2) | 23.5 (3.2) | 23.4 (3.2) | 23.5 (3.2) | 23.5 (3.2) | 23.6 (3.2) |
Health and medical history, %a | |||||||||
 Poor health | 8.6 | 12.1 | 16.6 | 7.5 | 5.7 | 5.9 | 5.8 | 5.4 | 6.5 |
 Any chronic diseaseb | 20.8 | 24.6 | 34.6 | 19.6 | 16.7 | 17.9 | 16.6 | 16.0 | 16.5 |
 Coronary heart disease | 2.7 | 3.3 | 5.4 | 2.3 | 2.0 | 2.2 | 1.9 | 1.7 | 2.2 |
 Stroke or transient ischaemic attack | 2.4 | 3.7 | 6.2 | 1.6 | 1.3 | 1.4 | 1.3 | 1.1 | 1.3 |
 Prevalent diabetes | 5.6 | 6.7 | 8.9 | 5.0 | 4.7 | 4.7 | 4.4 | 4.9 | 5.6 |
 Family history of cancer | 16.4 | 14.4 | 17.9 | 16.5 | 17.2 | 16.9 | 17.4 | 17.6 | 17.7 |
 Family history of diabetes | 6.5 | 6.1 | 7.8 | 6.7 | 6.2 | 6.5 | 6.0 | 5.9 | 6.3 |
 HBsAg test positive | 3.0 | 3.4 | 3.6 | 2.9 | 3.0 | 2.8 | 3.1 | 3.3 | 3.1 |