Table 2.
Baseline characteristics of participants in Suzhou
|
Men (n = 20,846) |
Women (n = 29,561) |
|
|---|---|---|
| Total follow-up time (CVD), person-years | 55,962 | 80,193 |
| Total follow-up time (respiratory disease), person-years | 57,706 | 82,830 |
| Age, years, mean (SD) | 51.9 (10.1) | 51.5 (10.2) |
| Education | ||
| No formal school | 9.7 | 43.3 |
| Primary school | 40.0 | 26.8 |
| Middle school | 36.4 | 22.8 |
| High school and above | 13.8 | 7.1 |
| Smoking | ||
| Never smoker | 7.7 | 99.1 |
| Occasional smoker | 10.8 | 0.5 |
| Ex regular smoker | 12.7 | 0.0 |
| Current regular smoker | 68.7 | 0.4 |
| Passive smoking | ||
| Never | 22.9 | 7.5 |
| Yes, but not now | 57.1 | 27.5 |
| Yes, at present | 20 | 65 |
| Alcohol consumption | ||
| Never | 16.2 | 89.1 |
| Ex-regular / Reduced intake | 10.6 | 0.3 |
| Occasional / Monthly | 32.2 | 10.0 |
| Current regular | 41.1 | 0.6 |
| Self-rated health | ||
| Excellent | 33.4 | 26.6 |
| Good | 32.9 | 31.7 |
| Fair | 26.5 | 29.8 |
| Poor | 7.1 | 11.9 |
| Physical activity, MET-hr/day, mean (SD) | 27.8 (15.9) | 24.4 (14.3) |
| Self-reported disease | ||
| Hypertension | 10.8 | 11.5 |
| Stroke/TIA | 1.1 | 0.6 |
| TB | 1.6 | 0.6 |
| CHD | 1 | 1 |
| Asthma | 0.7 | 0.8 |
| Emphysema/Bronchitis | 4.5 | 4.5 |
| Family history of diseasea | ||
| Stroke | 18.7 | 17.0 |
| Myocardial infarction | 1.9 | 2.1 |
| Cardiorespiratory symptomsb | ||
| Breathlessness | 2.0 | 3.8 |
| Chest pain | 1.0 | 2.2 |
| Chronic cough | 4.8 | 2.3 |
Values are percentages, unless otherwise stated
a Family history defined as baseline reported disease prevalence in mother and/or father
b Breathlessness and chest pain defined as being “short of breath”, and “slowing down due to chest discomfort”, respectively, when “walking on level ground with health people of the same age”. Chronic cough defined as “coughing frequently for ≥ 3 months"