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Demographic characteristics of the 948 participants
| Variables | N (%) |
|---|---|
| Age (years) | |
| 60–74 | 499 (52.6) |
| ≥75 | 449 (47.4) |
| Sex | |
| Male | 279 (29.4) |
| Female | 669 (70.6) |
| Educational attainment | |
| 0–6 | 408 (68.2) |
| ≥7 | 190 (31.8) |
| Living alone | |
| Yes | 490 (51.7) |
| No | 458 (48.3) |
