TABLE 1.
Characteristics of participants (the Korean Longitudinal Study of Aging Survey, South Korea, 2020).
| Variable | Number of participants (n) | Percentage (%) |
|---|---|---|
| All participants | 4,337 | 100.00 |
| Sex | ||
| Male | 1,828 | 42.15 |
| Female | 2,509 | 57.85 |
| Age in years | ||
| 65–74 | 2,041 | 47.06 |
| 75–84 | 1,699 | 39.17 |
| 85 or older | 597 | 13.77 |
| Living arrangement | ||
| With relatives | 2,942 | 67.83 |
| Living alone | 1,395 | 32.17 |
| Educational status | ||
| Elementary school or lower | 2,154 | 49.67 |
| Middle school | 764 | 17.61 |
| High school | 1,041 | 24.00 |
| College or higher | 378 | 8.72 |
| Body mass index | ||
| Normal | 1,813 | 41.80 |
| Underweight | 163 | 3.76 |
| Overweight | 1,281 | 29.54 |
| Obesity | 1,080 | 24.90 |
| Physical activity | ||
| Yes | 1,734 | 39.98 |
| No | 2,603 | 60.02 |
| Depression status | ||
| Yes | 193 | 4.45 |
| No | 4,144 | 95.55 |
| Number of chronic diseases | ||
| 0 | 823 | 18.97 |
| 1 | 1,248 | 28.78 |
| 2 | 1,113 | 25.66 |
| 3 or more | 1,153 | 26.59 |
| ADL disability | ||
| Severe | 84 | 1.94 |
| Moderate | 182 | 4.20 |
| None | 4,071 | 93.86 |
| IADL disability | ||
| Severe | 135 | 3.11 |
| Moderate | 537 | 12.38 |
| None | 3,665 | 84.51 |
ADL, activities of daily living; IADL, instrumental activities of daily living.