Table 1 General characteristics and occupational characteristics of study subjects by self-perceived health
Characteristics | N | Percent | Self-perceived health | p-value | |
|---|---|---|---|---|---|
Good (%) | Bad (%) | ||||
Sex | 0.142 | ||||
Male | 21,286 | 59.3 | 15,202(71.4) | 6084(28.6) | |
Female | 14,616 | 40.7 | 10,334(70.7) | 4282(29.3) | |
Age (year) | <0.001 | ||||
15-29 | 5588 | 15.6 | 4529(81.0) | 1059(19.0) | |
30-39 | 10,971 | 30.6 | 8370(76.3) | 2601(23.7) | |
40-49 | 10,488 | 29.2 | 7439(70.9) | 3049(29.1) | |
50-59 | 6059 | 16.9 | 3790(62.6) | 2269(37.4) | |
60- | 2797 | 7.8 | 1408(50.3) | 1389(49.7) | |
Income (won) | <0.001 | ||||
-990,000 | 4150 | 11.6 | 2610(62.9) | 1540(37.1) | |
1,000,000-1,990,000 | 13,533 | 37.7 | 9455(69.9) | 4078(30.1) | |
2,000,000-2,990,000 | 10,085 | 28.1 | 7427(73.6) | 2658(26.4) | |
3,000,000- | 8134 | 22.7 | 6044(74.3) | 2090(25.7) | |
Education | <0.001 | ||||
Middle school graduation or less | 3894 | 10.8 | 1989(51.1) | 1905(48.9) | |
High graduation | 13,155 | 36.6 | 9222(70.1) | 3933(29.9) | |
University graduation or more | 18,853 | 52.5 | 14,325(76.0) | 4528(24.0) | |
Alcohol | 0.249 | ||||
No | 8215 | 22.9 | 5676(69.1) | 2539(30.9) | |
≤ Once per week | 18,231 | 50.8 | 13,232(72.6) | 4999(27.4) | |
≥ Twice per week | 9456 | 26.3 | 6628(70.1) | 2828(29.9) | |
Smoking | 0.661 | ||||
Non-smoker | 19,613 | 54.8 | 13,939(71.1) | 5674(28.9) | |
Ex-smoker | 4037 | 11.2 | 2859(70.8) | 1178(29.2) | |
Current-smoker | 12,252 | 34.1 | 8738(71.3) | 3514(28.7) | |
Occupation | <0.001 | ||||
White collar | 13,776 | 38.4 | 10,547(76.6) | 3229(23.4) | |
Service, sales worker | 9846 | 27.4 | 7088(72.0) | 2758(28.0) | |
Blue collar | 12,280 | 34.2 | 7902(64.3) | 4378(35.7) | |
Employment type | <0.001 | ||||
Regular | 28,542 | 79.5 | 21,002(73.6) | 7540(26.4) | |
Temporary or part-time | 7360 | 20.5 | 4533(61.6) | 2827(38.4) | |
Work hours per week (hours) | <0.001 | ||||
≤ 45 h | 16,173 | 45 | 12,089(74.7) | 4084(25.3) | |
> 45 h | 19,729 | 55 | 13,447(68.2) | 6282(31.8) | |
Tenure(years) | 0.247 | ||||
≥ 1 yr | 30,672 | 85.4 | 21,781(71.0) | 8891(29.0) | |
< 1 yr | 5230 | 14.6 | 3755(71.8) | 1475(28.2) | |
Shift work | 0.001 | ||||
No | 32,533 | 90.6 | 23,225(71.4) | 9308(28.6) | |
Yes | 3368 | 9.4 | 2310(68.6) | 1058(31.4) | |
Workplace scale (person) | 0.342 | ||||
~99 | 29,253 | 81.5 | 20,708(70.8) | 8545(29.2) | |
100~999 | 4132 | 11.5 | 3084(74.6) | 1048(25.4) | |
999~ | 1353 | 3.8 | 1024(75.7) | 329(24.3) | |
Unknown | 1163 | 3.2 | 719(61.8) | 444(38.2) | |
Work at night | <0.001 | ||||
No | 31,278 | 87.1 | 22,537(72.1) | 8741(27.9) | |
Yes | 4624 | 12.9 | 2999(64.9) | 1625(35.1) | |
Work in the evening | <0.001 | ||||
No | 19,283 | 53.7 | 14,074(73.0) | 5209(27.0) | |
Yes | 16,619 | 46.3 | 11,462(69.0) | 5157(31.0) | |
Work on Sundays | <0.001 | ||||
No | 28,035 | 78.1 | 20,336(72.5) | 7699(27.5) | |
Yes | 7868 | 21.9 | 5200(66.1) | 2668(33.9) | |
Work on Saturdays | <0.001 | ||||
No | 15,074 | 42 | 11,205(74.3) | 3869(25.7) | |
Yes | 20,827 | 58 | 14,330(68.8) | 6497(31.2) | |
Working more than 10 h a day | <0.001 | ||||
No | 21,035 | 58.6 | 15,494(73.7) | 5541(26.3) | |
Yes | 14,867 | 41.4 | 10,042(67.5) | 4825(32.5) | |
Total | 35,902 | 100.0 | 25,536(71.1) | 10,366(28.9) | |