Table 1 Demographic and socioeconomic characteristics at baseline
| Â | No physical disability or dementia, n (%) | Developed physical disability, n (%) | Developed dementia, n (%) | Total, n (%) |
|---|---|---|---|---|
Total | 8,462 (98.8) | 74 (0.9) | 32 (0.4) | 8,568 |
Sex | ||||
 Male | 3,966 (46.9) | 30 (40.5) | 17 (53.1) | 4,013 (46.8) |
 Female | 4,496 (53.1) | 44 (59.5) | 15 (46.9) | 4,555 (53.2) |
Age, mean (SD) (years) | 74.7 (4.0) | 76.3 (5.0) | 75.7 (4.4) | 74.8 (4.0) |
Education attainment | ||||
  < Year 9 | 1,201 (14.2) | 13 (17.6) | 5 (15.6) | 1,219 (14.2) |
 Year 9—11 | 2,677 (31.6) | 28 (37.8) | 11 (34.4) | 2,716 (31.7) |
 Year 12 | 897 (10.6) | 10 (13.5) | 4 (12.5) | 911 (10.6) |
 Higher education | 3,687 (43.6) | 23 (31.1) | 12 (37.5) | 3,722 (43.4) |
Annual household income | ||||
  < AU$20,000 | 1,175 (13.9) | 18 (24.3) | 7 (21.9) | 1,200 (14.0) |
 AU$20,000—AU$49,999 | 4,535 (53.6) | 36 (48.6) | 15 (46.9) | 4,586 (53.5) |
 AU$50,000—AU$99,999 | 1,606 (19.0) | 9 (12.2) | 4 (12.5) | 1,619 (18.9) |
  > AU$100,000 | 388 (4.6) | 2 (2.7) | 4 (12.5) | 394 (4.6) |
 Declined to answer | 758 (9.0) | 9 (12.2) | 2 (6.3) | 769 (9.0) |
Living situation | ||||
 At home alone | 2,477 (29.3) | 20 (27.0) | 7 (21.9) | 2,504 (29.2) |
 At home with family, friends, or spouse | 5,966 (70.5) | 53 (71.6) | 25 (78.1) | 6,044 (70.5) |
 In carea | 19 (0.2) | 1 (1.4) | - | 20 (0.2) |