Table 1.
General characteristics of study participants.
| Variables | All participants (n = 7,988) |
|---|---|
| Age | 73.4 ± 6.1 |
| Sex | |
| Men | 5,361 (67.1) |
| Women | 2,627 (32.9) |
| Quartiles of years of education | |
| No education | 514 (6.4) |
| 1–6 years | 2,401 (30.1) |
| 7–12 years | 4,426 (55.4) |
| ≥13 years | 647 (8.1) |
| Marriage status | |
| Single or never married | 31 (0.4) |
| Married or cohabiting | 4,939 (61.8) |
| Widowed | 2,690 (33.7) |
| Divorced | 279 (3.5) |
| Separated | 49 (0.6) |
| Employment status | |
| Employed | 3,389 (42.4) |
| Unemployed | 4,599 (57.6) |
| Alcohol consumption | |
| Ex or none smoker | 7,069 (88.5) |
| Current smoker | 919 (11.5) |
| Number of chronic diseases | 1.8 ± 1.4 |
| SGDS-K score | 3.1 ± 3.2 |
| MMSE score | 25.3 ± 3.9 |
Values are represented as mean ± SD or n (%).
MMSE, Mini-Mental State Examination; SGDS-K, Short Geriatric Depression Scale of Korean version.