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Table 1 Cross-sectional characteristics of participants at baseline (2004–8) and resurvey (2013–14)

From: Patterns and trends of alcohol consumption in rural and urban areas of China: findings from the China Kadoorie Biobank

Characteristics* Men Women
Baseline (N = 210,259) Resurvey (N = 9569) Baseline (N = 302,632) Resurvey (N = 15,427)
Socio-demographic characteristics
Mean age, years 52.4 59.7 51.0 58.5
Birth cohorts, %
 < 1940 13.8 11.6 10.3 8.6
 1940–1949 22.4 24.2 20.6 22.2
 1950–1959 30.9 32.9 32.2 34.4
 1960–1969 27.9 27.5 31.3 30.5
 ≥ 1970 4.9 3.9 5.7 4.3
Area, %
 Rural 56.6 56.8 55.4 57.1
Highest education, %
 No formal education 8.9 9.2 25.3 27.1
 Primary school 33.4 33.4 31.4 31.4
 Middle or high school 49.9 49.2 38.8 37.4
 Technical school/college or above 7.9 8.2 4.5 4.2
Household income (yuan/year), %
 < 10,000 26.0 8.2 29.8 9.0
 10,000-19,999 28.3 11.2 29.6 13.0
 20,000-34,999 25.4 17.9 24.2 20.2
 35,000+ 20.2 62.7 16.5 57.8
Health and lifestyle factors
 Regular smoking, % 61.1 51.0 2.4 1.6
 Daily fruit intake, % 23.0 39.0 31.8 48.8
 Physical activity, mean MET hours/day 22.0 21.1 20.4 18.4
 Self-reported good healtha, % 49.2 47.0 43.3 41.8
 Prior diseaseb, % 22.6 31.7 22.1 33.9
 Satisfied with lifec, % 69.7 82.4 67.7 80.5
Physical measurements
 Mean SBP, mmHg 132.8 136.9 129.9 136.3
 Mean DBP, mmHg 79.2 79.6 76.8 77.5
 Mean heart rate, beats/minute 77.7 76.6 79.7 78.2
 Mean BMI, kg/m2 23.4 24.0 23.8 24.3
 Mean WHR 0.9 0.9 0.9 0.9
 Mean standing height, cm 165.2 164.7 154.1 153.5
  1. BMI body mass index, S/DBP systolic/diastolic blood pressure, MET metabolic equivalent task, WHR waist-hip ratio
  2. *Characteristics were based on the characteristics of the participants collected at each of the baseline and the resurvey
  3. aReporting good or excellent self-rated health status
  4. bDiagnosed with one or more of: coronary heart disease, stroke, transient ischaemic attack, diabetes, cancer, tuberculosis, chronic hepatitis/cirrhosis, rheumatoid arthritis, peptic ulcer, chronic respiratory disease, gallstone/gallbladder disease, kidney disease
  5. cReporting being satisfied or very satisfied with life