Table 1.
Characteristics of the study participants at baseline.
| Characteristics |
Baseline (n = 7,298) |
One-year follow-up (n = 4,742) |
|---|---|---|
| N (%) | N (%) | |
| Mean age (SD) | 74.2 (± 5.5) | |
| Age group | ||
| 65–74 y | 4,266 (58.5) | 2,940 (62.0) |
| 75–84 y | 2,785 (38.1) | 1,692 (35.7) |
| ≥85 y | 247 (3.4) | 110 (2.3) |
| Sex | ||
| Female | 4,447 (60.9) | 2,849 (60.1) |
| Male | 2,851 (39.1) | 1,893 (39.9) |
| Education | ||
| Middle school or below | 3,348 (45.9) | 2,079 (56.1) |
| High school or above | 3,944 (54.1) | 2,660 (43.9) |
| Married | ||
| Yes | 5,586 (76.5) | 3,741 (78.9) |
| No | 1,712 (23.5) | 1,001 (21.1) |
| Comorbidity | ||
| ≥2 Chronic diseases | 2,620 (35.9) | 1,656 (35.0) |
| <2 Chronic diseases | 4,653 (63.8) | 3,073 (65.0) |
| Number of chronic diseases | ||
| 0 | 2,031 (27.8) | 1,318 (27.9) |
| 1 | 2,622 (35.9) | 1,755 (37.1) |
| 2 | 1,822 (25.0) | 1,182 (25.0) |
| ≥3 | 798 (10.9) | 474 (10.0) |
| Impairment in intrinsic capacity (IC) domains | ||
| Locomotion | 807 (11.1) | 342 (7.2) |
| Vitality | 2,533 (34.7) | 1,501 (31.7) |
| Sensory | 2,390 (32.8) | 1,483 (31.3) |
| Cognition | 1,338 (18.4) | 709 (15.0) |
| Psychology | 806 (11.8) | 454 (10.3) |
| Activities of daily living (ADL) disability | ||
| Yes | 559 (7.7) | 603 (12.7) |
| No | 6,663 (91.2) | 4,139 (87.3) |