Table 3.
Characteristics of study population (n=7,856)
| Characteristics | Number (%) |
|---|---|
| Work absence due to injury (yes) | 108 (1.4) |
| Sex | |
| Male | 4,611 (58.7) |
| Female | 3,245 (41.3) |
| Age group (years) | |
| 18–24 | 205 (2.6) |
| 25–34 | 1,759 (22.4) |
| 35–44 | 2,597 (33.0) |
| 45–54 | 2,094 (26.7) |
| 55–65 | 1,201 (15.3) |
| Highest education | |
| Below middle school | 1,563 (19.9) |
| High school | 3,125 (39.8) |
| College/university and beyond | 3,168 (40.3) |
| Smoking status | |
| Never | 4,246 (54.1) |
| Former | 1,110 (14.1) |
| Current | 2,500 (31.8) |
| Alcohol consumption (grams of ethanol per week) | |
| Nondrinker | 2,242 (28.5) |
| 0.01 to 49.9 | 2,715 (34.6) |
| 50.0 to 99.9 | 993 (12.6) |
| 100.0 to 299.9 | 1,461 (18.6) |
| >300.0 | 445 (5.7) |
| Presence of illness | |
| No | 6,085 (77.5) |
| Yes | 1,771 (22.5) |
| Employment status | |
| Employed | 5,334 (67.9) |
| Self employed or employer | 2,522 (32.1) |
| Income (million Korean won per month) | |
| <1 (approximately 820.34 €)a | 1,806 (23.0) |
| 1–1.99 | 3,052 (38.8) |
| ≥2 (approximately 1,640.69 €) | 2,998 (38.2) |
| Job type | |
| Senior manager/clerical | 1,368 (17.4) |
| Professional/technical | 1,595 (20.3) |
| Service | 885 (11.3) |
| Sales | 926 (11.8) |
| Agriculture/fisheries | 624 (7.9) |
| Skilled | 776 (9.9) |
| Machine operator | 835 (10.6) |
| Unskilled | 804 (10.2) |
| Armed forces | 43 (0.6) |
| Employment contract | |
| Full time work | 7,641 (97.3) |
| Part time | 215 (2.7) |
| Working hours per week | |
| <35 | 734 (9.3) |
| 35–44 | 2,574 (32.8) |
| ≥45 | 4,543 (57.8) |
| Missing | 5 (0.1) |
| Work schedule | |
| Nonshift (daytime) | 524 (6.7) |
| Shift/night | 7,328 (93.3) |
| Missing | 4 (0.0) |
a
At an exchange rate of approximately 1,219 Korean won/1 € (as of 1 Aug 2006)