Table 1 Basic characteristics of the study population
Total (N = 6023) | |||
|---|---|---|---|
No. | (%a) | %b | |
Sex | |||
Men | 3203 | (53.18) | 51.88 |
Women | 2820 | (46.82) | 48.12 |
Age, years | |||
25–34 | 1078 | (18.20) | 18.37 |
35–44 | 1693 | (28.58) | 26.63 |
45–54 | 1707 | (28.81) | 29.33 |
55–65 | 1446 | (24.41) | 25.66 |
Residence | |||
Urban | 4824 | (80.09) | 78.86 |
Rural | 1199 | (19.91) | 21.14 |
Household income | |||
1st quartile | 479 | (7.95) | 9.02 |
2nd quartile | 1520 | (25.24) | 27.45 |
3rd quartile | 1943 | (32.26) | 31.68 |
4th quartile | 2081 | (34.55) | 31.85 |
Education level | |||
Middle school | 1552 | (25.77) | 28.74 |
High school | 2160 | (35.86) | 37.47 |
University | 2311 | (38.37) | 33.79 |
Degree of obesity | |||
Normal | 2486 | (41.28) | 41.20 |
Overweight | 1484 | (24.64) | 24.21 |
Obese | 2053 | (34.09) | 34.59 |
Smoking | |||
Never | 3055 | (50.72) | 50.34 |
Former | 1330 | (22.08) | 21.48 |
Current | 1638 | (27.20) | 28.18 |
Alcohol consumption | |||
Never | 1152 | (19.13) | 19.23 |
Moderate | 3957 | (65.70) | 65.13 |
Severe | 914 | (15.18) | 15.63 |
Physical activity | |||
No | 3846 | (63.86) | 64.47 |
Low-intensity | 1871 | (31.06) | 30.49 |
High-intensity | 306 | (5.08) | 5.04 |
Occupational category | |||
Executive white-collar | 1410 | (23.41) | 21.09 |
Ordinary white-collar | 894 | (14.84) | 13.30 |
Pink-collar | 1326 | (22.02) | 23.51 |
Green-collar | 541 | (8.98) | 9.63 |
Skilled blue-collar | 1030 | (17.10) | 17.54 |
Unskilled blue-collar | 822 | (13.65) | 14.93 |
Work period | |||
Day | 4942 | (82.05) | 81.88 |
Evening or night | 654 | (10.86) | 11.10 |
Shift | 427 | (7.09) | 7.02 |
Work status | |||
Paid worker | 4093 | (67.96) | 65.07 |
Self-employed worker | 1526 | (25.34) | 27.42 |
Unpaid family worker | 404 | (6.71) | 7.51 |
Work duration, h/week | |||
< 43 | 2942 | (48.85) | 48.56 |
≥ 43 | 3081 | (51.15) | 51.44 |
Sunlight exposure, h/day | |||
< 2 | 3942 | (65.45) | 63.60 |
2–5 | 1325 | (22.00) | 22.94 |
≥ 5 | 756 | (12.55) | 13.47 |
Exposure to secondhand smoke at indoor workplace, h/day | |||
0 | 3228 | (53.59) | 52.60 |
0–1 | 2135 | (35.45) | 35.47 |
≥ 1 | 660 | (10.96) | 11.94 |