Table 1 Characteristics of the study population
Men | Women | |||
|---|---|---|---|---|
n | % | n | % | |
Age (years) | ||||
30–39 | 2475 | 32.7 | 1785 | 28.6 |
40–49 | 2661 | 35.2 | 2249 | 36.1 |
50–60 | 2429 | 32.1 | 2200 | 35.3 |
Education | ||||
Below elementary school | 546 | 7.2 | 1041 | 16.7 |
Middle school graduate | 771 | 10.2 | 872 | 14.0 |
High school graduate | 2802 | 37.0 | 2487 | 39.9 |
Above college graduate | 3446 | 45.6 | 1834 | 29.4 |
Income status | ||||
1st Quartile | 437 | 5.8 | 545 | 8.7 |
2nd Quartile | 1733 | 22.9 | 1573 | 25.2 |
3rd Quartile | 2518 | 33.3 | 1993 | 32.0 |
4th Quartile | 2877 | 38.0 | 2123 | 34.1 |
Employment condition | ||||
Paid worker | 4671 | 61.7 | 3836 | 61.5 |
Self-employed or employer | 2743 | 36.3 | 1547 | 24.8 |
Unpaid family worker | 151 | 2.0 | 851 | 13.7 |
Occupation | ||||
Managers and professionals | 1822 | 24.1 | 1298 | 20.8 |
Office workers | 1264 | 16.7 | 819 | 13.1 |
Service and sales workers | 1193 | 15.8 | 2025 | 32.5 |
Agriculture, forestry, and fishery workers | 576 | 7.6 | 553 | 8.9 |
Craft, device, and machine operators and assembly workers | 2188 | 28.9 | 411 | 6.6 |
Manual workers | 522 | 6.9 | 1128 | 18.1 |
Work shift | ||||
Fixed-day schedule | 6392 | 84.5 | 5144 | 82.5 |
Any schedule other than fixed-day schedule* | 1173 | 15.5 | 1090 | 17.5 |
Weekly working hours | ||||
< 30 | 460 | 6.1 | 1357 | 21.8 |
30–40 | 649 | 8.6 | 974 | 15.6 |
40 | 1406 | 18.6 | 981 | 15.7 |
40–50 | 1567 | 20.7 | 1085 | 17.4 |
50–60 | 1587 | 21.0 | 757 | 12.1 |
60–70 | 1009 | 13.3 | 488 | 7.8 |
70–80 | 555 | 7.3 | 367 | 5.9 |
≥ 80 | 332 | 4.4 | 225 | 3.6 |
Total | 7565 | 54.8 | 6234 | 45.2 |