Table 1.
Prevalence of intrinsic capacity decline in older adults by sex, area and age
| Total | Intrinsic capacity decline | Weighted | Number of declined domains | ||||||
| n (%) | (%) | 0 | 1 | 2 | 3 | 4 | 5 | ||
| All sample | 5823 | 2506 (43.0) | 39.9 | 3317 (57.0) | 1512 (26.0) | 636 (10.9) | 271 (4.7) | 75 (1.3) | 12 (0.2) |
| Sex* | |||||||||
| Male | 2518 | 1030 (40.9) | 36.7 | 1488 (59.1) | 652 (25.9) | 266 (10.6) | 81 (3.2) | 27 (1.1) | 4 (0.2) |
| Female | 3305 | 1476 (44.7) | 43.0 | 1829 (55.3) | 860 (26.0) | 370 (11.3) | 190 (5.7) | 48 (1.5) | 8 (0.2) |
| Area* | |||||||||
| Urban | 3494 | 1243 (35.6) | 32.7 | 2251 (64.4) | 868 (24.8) | 275 (7.9) | 81 (2.3) | 18 (0.5) | 1 (0) |
| Rural | 2329 | 1263 (54.2) | 50.1 | 1066 (45.8) | 644 (27.7) | 361 (15.5) | 190 (8.2) | 57 (2.4) | 11 (0.5) |
| Age (years)* | |||||||||
| 60–64 | 1471 | 428 (29.1) | 28.6 | 1043 (70.9) | 309 (21.0) | 85 (5.8) | 30 (2.0) | 4 (0.3) | 0 (0) |
| 65–69 | 1179 | 414 (35.1) | 34.9 | 765 (64.9) | 271 (23.0) | 100 (8.5) | 34 (2.9) | 9 (0.8) | 0 (0) |
| 70–74 | 1165 | 515 (44.2) | 43.6 | 650 (55.8) | 337 (28.9) | 116 (10.0) | 46 (3.9) | 16 (1.4) | 0 (0) |
| 75–79 | 1119 | 562 (50.2) | 50.3 | 557 (49.8) | 325 (29.0) | 150 (13.4) | 62 (5.5) | 20 (1.8) | 5 (0.4) |
| ≥80 | 889 | 587 (66.0) | 66.6 | 302 (34.0) | 270 (30.4) | 185 (20.8) | 99 (11.1) | 26 (2.9) | 7 (0.8) |
*P<0.05.