From: Presenteeism among self-employed workers: Korean working conditions survey
 | Paid workers | Self-employed workers | P-value* |
---|---|---|---|
Total | |||
Age | |||
 15-29 | 7387 (21.2) | 216 (2.5) | <0.001 |
 30-39 | 9879 (28.4) | 887 (10.3) |  |
 40-49 | 9260 (26.6) | 2197 (25.5) |  |
 50-59 | 5902 (17.0) | 2704 (31.4) |  |
 ≥60 | 2355 (6.8) | 2605 (30.3) |  |
Sex | |||
 Male | 20531 (59.0) | 5737 (66.6) | <0.001 |
 Female | 14252 (41.0) | 2872 (33.4) |  |
Income (10,000 won/month) | |||
 <100 | 4263 (12.3) | 1566 (18.2) | <0.001 |
 100-199 | 13703 (39.4) | 3008 (34.9) |  |
 200-299 | 9728 (28.0) | 2389 (27.8) |  |
 ≥300 | 7090 (20.4) | 1646 (19.1) |  |
Education | |||
 <Elementary | 280 (8.0) | 426 (4.9) | <0.001 |
 Elementary school | 1127 (3.2) | 1035 (12.0) |  |
 Middle school | 2279 (6.6) | 1431 (16.6) |  |
 High school | 12762 (36.7) | 3867 (44.9) |  |
 College | 6390 (18.4) | 820 (9.5) |  |
 University | 10960 (31.5) | 958 (11.1) |  |
 Graduate school | 984 (2.8) | 73 (0.8) |  |
Alcohol intake | |||
 Heavy | 7891 (22.7) | 2642 (30.7) | <0.001 |
 Moderate | 5226 (15.0) | 1353 (15.7) |  |
 None | 21666 (62.3) | 4615 (53.6) |  |
Smoking | |||
 Never or past | 22864 (65.7) | 5733 (66.6) | 0.133 |
 Current | 11918 (34.3) | 2876 (33.4) |  |