Table 1 Basic characteristics of participants in females and males (N = 512,891)
|  | Female (N = 302,632) | Male (N = 210,259) |
|---|---|---|
Basic characteristics | ||
 Age, years * | 50.96 (10.48) | 52.35 (10.90) |
 Urban, % | 44.55 | 43.45 |
 Married, % | 88.98 | 92.90 |
Education, % | ||
 Uneducated & Primary school | 56.72 | 42.23 |
 High schools | 38.83 | 49.90 |
 University | 4.45 | 7.87 |
Income (Yuan), % | ||
  < 9999 | 29.77 | 26.04 |
 10,000–34,999 | 53.78 | 53.73 |
  > 35,000 | 16.45 | 20.23 |
Occupation, % | ||
 Agriculture worker | 40.55 | 43.41 |
 Non-agriculture worker | 59.45 | 56.59 |
Lifestyle factors | ||
 SBP, mmHg * | 129.87 (21.99) | 132.82 (20.04) |
 MET, MET-hour/day * | 20.42 (12.76) | 20.03 (15.29) |
 Depression, % | 0.78 | 0.46 |
Smoking, % | ||
 Never | 94.93 | 14.42 |
 Occasional | 2.70 | 24.52 |
 Regular | 2.37 | 61.07 |
Alcohol, % | ||
 Never | 63.58 | 20.36 |
 Occasional | 32.96 | 40.14 |
 Regular | 3.46 | 39.51 |
Sleep Status | ||
 Having daytime sleep, % | 18.35 | 24.52 |
 Sleep hours, hours * | 7.35 (1.40) | 7.42 (1.33) |