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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