Table 1 Baseline characteristics by outcome status after six years.
From: Age, gender and disability predict future disability in older people: the Rotterdam Study
No disability (n = 2447) | Mild Disability (n = 878) | Severe disability (n = 781) | Death (n = 921) | |
|---|---|---|---|---|
Age | 63.9 (5.9) | 67.5 (6.8) | 72.1 (7.7) | 75.5 (8.7) |
Women | 50.8 | 62.9 | 77.5 | 48.9 |
Partner | 74.6 | 69.6 | 54.7 | 53.5 |
Educational level | ||||
Low | 13.1 | 18.1 | 31.3 | 33.6 |
Intermediate | 74.8 | 72.9 | 64.3 | 60.3 |
High | 12.1 | 9.0 | 4.4 | 6.1 |
Income level | ||||
Low | 16.1 | 20.6 | 32.2 | 31.8 |
Intermediate | 49.2 | 53.4 | 54.1 | 52.2 |
High | 34.7 | 26.0 | 13.8 | 16.0 |
Insurance (public) | 46.0 | 51.5 | 61.7 | 61.1 |
Smoking | ||||
Never | 28.9 | 35.9 | 44.9 | 32.0 |
Formerly | 48.0 | 42.6 | 36.1 | 40.8 |
Currently | 23.1 | 21.5 | 19.0 | 27.2 |
Disability Index | 0.11 (0.2) | 0.28 (0.1) | 0.71 (0.6) | 0.71 (0.8) |
MMSE | 28.2 (1.4) | 27.9 (1.5) | 27.5 (1.8) | 27.0 (2.0) |
Self-rated health | ||||
Better | 59.0 | 49.7 | 40.1 | 48.1 |
Same | 36.9 | 41.3 | 43.3 | 37.2 |
Worse | 4.0 | 9.0 | 16.6 | 14.7 |
BMI | 25.9 (3.3) | 26.7 (3.7) | 27.5 (4.0) | 26.0 (3.9) |
Hypertension | 24.9 | 35.5 | 39.7 | 46.4 |
Depression | 29.3 | 35.5 | 43.3 | 34.9 |
Parkinson's disease | 0.0 | 0.1 | 1.8 | 1.1 |
Diabetes mellitus | 3.0 | 5.1 | 9.3 | 11.1 |
Myocardial infarction | 5.6 | 8.5 | 8.6 | 15.9 |
Stroke | 1.2 | 2.1 | 5.5 | 7.8 |
Respiratory disease | 3.1 | 5.5 | 6.0 | 8.9 |
Osteoarthritis | 18.2 | 30.2 | 37.0 | 23.3 |
Joint complaints | 42.6 | 58.8 | 71.7 | 49.0 |
Morning stiffness | 24.8 | 36.7 | 51.3 | 33.7 |
Falls | 9.7 | 14.7 | 23.0 | 22.2 |
Hearing impairment | 2.1 | 2.9 | 6.0 | 11.4 |
Vision impairment | 0.5 | 1.4 | 4.3 | 5.3 |
Dizziness | 6.0 | 10.1 | 20.4 | 14.4 |
Comorbidities (>1) | 11.6 | 21.9 | 30.9 | 28.1 |
Medication (>2) | 16.8 | 30.4 | 49.4 | 48.6 |
Total cholesterol (mmol/l) | 6.7 (1.2) | 6.7 (1.1) | 6.7 (1.2) | 6.4 (1.3) |
HDL (mmol/l) | 1.4 (0.4) | 1.3 (0.3) | 1.4 (0.4) | 1.3 (0.4) |