Table 1.
Cross-sectional characteristics of participants at baseline (2004–8) and resurvey (2013–14)
| 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 |
BMI body mass index, S/DBP systolic/diastolic blood pressure, MET metabolic equivalent task, WHR waist-hip ratio
*Characteristics were based on the characteristics of the participants collected at each of the baseline and the resurvey
aReporting good or excellent self-rated health status
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
cReporting being satisfied or very satisfied with life