Table 1 Baseline characteristics of participants (n = 24,159)
Characteristic | n | % |
|---|---|---|
Age | Â | Â |
≤25 | 13,759 | 57.0 |
<25 and < =35 | 5114 | 21.2 |
>35 | 5286 | 21.9 |
Gender | Â | Â |
Man | 11,796 | 48.8 |
Woman | 12,363 | 51.2 |
BMI | Â | Â |
Non-overweight | 21,735 | 90.0 |
Overweight | 2424 | 10.0 |
Married status | Â | Â |
Unmarried | 14,358 | 59.4 |
Married | 9801 | 40.6 |
Education level | Â | Â |
Less than junior high school | 2389 | 9.9 |
High school or college | 8848 | 36.6 |
Bachelor degree or above | 12,922 | 53.5 |
Occupation | Â | Â |
Professional | 5370 | 22.2 |
Manager | 3627 | 15.0 |
Clerk | 233 | 1.0 |
Soldier | 11 | 0.0 |
High school students | 10,178 | 42.1 |
Production personnel | 131 | 0.5 |
Operating personnel | 2577 | 10.7 |
Business, service personnel | 360 | 1.5 |
Freelancer | 873 | 3.6 |
Inoccupation (housewife, etc.) | 56 | 0.2 |
Others | 743 | 3.1 |
Smoking | Â | Â |
No | 20,409 | 84.5 |
Yes | 3251 | 14.5 |
Quit | 260 | 1.1 |
Missing | 239 | 1.0 |
Drinking | Â | Â |
Never | 7157 | 29.6 |
Little | 10,925 | 45.2 |
Sometimes | 5316 | 22.0 |
Often | 555 | 2.3 |
Always | 40 | 0.2 |
Missing | 166 | 0.7 |