| Total | 19- to 40-year-old men | 41- to 60-year-old men | p-value | |||
---|---|---|---|---|---|---|---|
N | %(SE) | N | %(SE) | N | %(SE) | Â | |
Age (mean (SD)) | 38.2 (0.1) | 32.1 (0.1) | 49.6 (0.1) | <0.01 | |||
Work schedule | |||||||
 Day time (06 am-06 pm) | 4119 | 83.6 (0.5) | 1594 | 79.6 (0.9) | 2525 | 86.4 (0.6) |  |
 Evening time (02 pm-12 am) | 361 | 7.3 (0.4) | 190 | 9.5 (0.7) | 171 | 5.9 (0.4) |  |
 Fixed overnight (09 pm-08 am) | 196 | 4.0 (0.3) | 99 | 4.9 (0.5) | 97 | 3.3 (0.3) |  |
 Night-included regular rotation | 251 | 5.1 (0.3) | 121 | 6.0 (0.5) | 130 | 4.4 (0.4) | <0.01 |
Job category | |||||||
 Office work | 2036 | 41.6 (0.7) | 959 | 48.5 (1.1) | 1077 | 37.0 (1.1) |  |
 Service and sales work | 824 | 16.9 (0.5) | 392 | 19.8 (0.9) | 432 | 14.8 (0.9) |  |
 Manual work | 2032 | 41.5 (0.7) | 627 | 31.7 (1.0) | 1405 | 48.2 (1.0) | <0.01 |
Type of employment | |||||||
 Permanent | 2603 | 52.8 (0.7) | 1324 | 66.1 (1.1) | 1279 | 43.8 (0.9) |  |
 Temporary | 297 | 6.0 (0.3) | 176 | 8.8 (0.6) | 121 | 4.1 (0.4) |  |
 Daily workers | 246 | 5.0 (0.3) | 74 | 3.7 (0.4) | 172 | 5.9 (0.4) |  |
 aOther | 1781 | 36.1 (0.7) | 430 | 21.4 (0.9) | 1351 | 46.2 (0.9) | <0.01 |
Work hour | |||||||
 40 h per week or less | 1938 | 39.3 (0.7) | 742 | 37.0 (1.1) | 1196 | 40.9 (0.9) |  |
 More than 40 h per week | 2989 | 60.7 (0.7) | 1262 | 63.0 (1.1) | 1727 | 59.1 (0.9) | 0.01 |
Educational level | |||||||
 Middle school or less | 749 | 15.2 (0.5) | 51 | 2.6 (0.4) | 698 | 23.9 (0.8) |  |
 High school | 1926 | 39.1 (0.7) | 814 | 40.6 (1.1) | 1112 | 38.0 (0.9) |  |
 University or more | 2252 | 45.7 (0.7) | 1139 | 56.8 (1.1) | 1113 | 38.1 (0.9) | <0.01 |
Home income quartile | |||||||
 Low | 272 | 5.6 (0.3) | 103 | 5.1 (0.5) | 169 | 5.8 (0.4) |  |
 Medium low | 1115 | 22.8 (0.6) | 499 | 25.0 (1.0) | 616 | 21.3 (0.8) |  |
 Medium high | 1685 | 34.5 (0.7) | 762 | 38.2 (1.1) | 923 | 31.9 (0.9) |  |
 High | 1818 | 37.2 (0.7) | 632 | 31.7 (1.0) | 1186 | 41.0 (1.2) | 0.01 |
Marriage status | |||||||
 Positive | 3981 | 80.8 (0.6) | 1291 | 64.4 (1.1) | 2690 | 92.0 (0.5) |  |
 Negative | 946 | 19.2 (0.6) | 713 | 35.6 (1.1) | 233 | 8.0 (0.5) | <0.01 |
Perceived stress | |||||||
 Low | 3441 | 69.8 (0.7) | 1306 | 65.2 (1.1) | 2135 | 73.0 (0.8) |  |
 High | 1486 | 30.2 (0.7) | 698 | 34.8 (1.1) | 788 | 27.0 (0.8) | <0.01 |