Table 1.
General characteristics of study subjects
| Age < 55 | ≥55 Age < 65 | Age ≥ 65 | p-value | ||
|---|---|---|---|---|---|
| Frequency (%) | Frequency (%) | Frequency (%) | |||
| Workplace size | <5 workers | 5097(21.5) | 1052(25.4) | 647(31.2) | P < 0.001 |
| 5 ~ <30 workers | 9158(38.5) | 1761(42.6) | 1051(50.7) | ||
| 30 ~ <50 workers | 2774(11.7) | 412(10.0) | 165(8.0) | ||
| 50 ~ <300 workers | 4583(19.3) | 660(16.0) | 187(9.0) | ||
| ≥300 workers | 2149(9.0) | 254(6.1) | 24(1.2) | ||
| Total | 23,761(100.0) | 4139(100.0) | 2074(100.0) | ||
| Type of employment | Regular | 19,041(79.0) | 2528(59.2) | 602(27.5) | P < 0.001 |
| Temporary | 3782(15.7) | 1052(24.6) | 1037(47.3) | ||
| Daily | 1280(5.3) | 689(16.1) | 552(25.2) | ||
| Total | 24,103(100.0) | 4269(100.0) | 2191(100.0) | ||
| Monthly salary (Korean won) | <1,000,000 | 1622(9.4) | 544(18.2) | 1040(62.0) | P < 0.001 |
| 1,000,000 ~ <2,000,000 | 6007(35.0) | 1326(44.4) | 528(31.5) | ||
| 2,000,000 ~ <3,000,000 | 5226(30.4) | 549(18.4) | 75(4.5) | ||
| 3,000,000 ~ <4,000,000 | 2750(16.0) | 318(10.6) | 22(1.3) | ||
| ≥4,000,000 | 1575(9.2) | 251(8.4) | 12(0.7) | ||
| Total | 17,180(100.0) | 2988(100.0) | 1677(100.0) | ||
| Major Categories of Occupation(KSCO) | Managers | 466(1.9) | 120(2.8) | 14(0.6) | P < 0.001 |
| Professionals and Related Workers | 3753(15.5) | 268(6.3) | 41(1.9) | ||
| Clerks | 7321(30.3) | 420(9.8) | 43(2) | ||
| Service Workers | 3353(13.9) | 710(16.5) | 207(9.4) | ||
| Sales Workers | 3550(14.7) | 331(7.7) | 43(2) | ||
| Skilled Workers Related to Agriculture, Forestry and Fishery | 44(0.2) | 37(0.9) | 51(2.3) | ||
| Craft and Related Trades Workers | 2357(9.8) | 483(11.3) | 92(4.2) | ||
| Workers Related to Equipment, Machine Operating and assembling | 1479(6.1) | 366(8.5) | 57(2.6) | ||
| Elementary Occupations | 1835(7.6) | 1559(36.3) | 1658(75.2) | ||
| Total | 24,158(100.0) | 4294(100.0) | 2206(100.0) |
Total numbers are not identical due to non-response.