| Group; % of participants* | |||||||
|---|---|---|---|---|---|---|---|
| Characteristic | All | Age 65-74 yr | Age 75-84 yr | Age 85 yr+ | |||
| Dementia | No dementia | Dementia | No dementia | Dementia | No dementia | ||
| No. | 610 457 | 5424 | 435 151 | 8652 | 115 957 | 9772 | 35 501 |
| Male | 46.8 | 50.3 | 49.6 | 39.1 | 42.5 | 27.6 | 33.8 |
| Aboriginal | 1.4 | 3.1 | 1.6 | 0.6 | 0.6 | 0.4 | 0.5 |
| Rural | 14.8 | 13.2 | 15.7 | 10.6 | 13.3 | 10.7 | 11.8 |
| No. of nondementia morbidities, median (IQR) | 2 (1,3) | 4 (2,5) | 1 (0,3) | 3 (2,5) | 2 (1,3) | 3 (2,5) | 2 (1,4) |
| None | 23.0 | 5.5 | 25.6 | 6.7 | 17.8 | 6.6 | 19.2 |
| 1 | 26.3 | 12.1 | 28.0 | 13.9 | 24.8 | 13.6 | 19.5 |
| 2 | 21.0 | 15.0 | 21.1 | 15.9 | 21.8 | 18.2 | 19.6 |
| 3 | 13.5 | 16.9 | 12.6 | 17.1 | 15.3 | 19.0 | 15.4 |
| 4 | 7.6 | 14.0 | 6.5 | 14.6 | 9.2 | 14.9 | 10.8 |
| 5 or more | 8.7 | 36.6 | 6.2 | 31.8 | 11.2 | 27.7 | 15.5 |
| Alcohol misuse | 2.3 | 19.1 | 2.2 | 8.5 | 1.5 | 3.1 | 0.9 |
| Asthma | 3.0 | 6.7 | 2.7 | 5.2 | 3.5 | 4.5 | 3.6 |
| Atrial fibrillation | 6.9 | 11.9 | 4.5 | 19.5 | 10.6 | 23.4 | 15.5 |
| Cancer, lymphoma | 0.5 | 0.9 | 0.5 | 0.7 | 0.6 | 0.4 | 0.5 |
| Cancer, metastatic | 1.5 | 2.2 | 1.3 | 2.6 | 2.0 | 2.0 | 2.0 |
| Cancer, nonmetastatic | 5.8 | 6.0 | 5.2 | 8.6 | 7.4 | 7.1 | 6.8 |
| Chronic heart failure | 8.7 | 20.5 | 5.1 | 28.1 | 13.3 | 37.3 | 24.1 |
| Chronic kidney disease | 18.2 | 29.3 | 17.9 | 22.8 | 16.5 | 28.0 | 21.4 |
| Chronic pain | 9.7 | 11.2 | 9.7 | 9.6 | 10.5 | 7.1 | 8.4 |
| Chronic pulmonary disease | 16.3 | 33.6 | 14.1 | 31.3 | 20.1 | 29.0 | 21.2 |
| Chronic viral hepatitis B | 0.1 | 0.2 | 0.1 | < 0.1 | < 0.1 | < 0.1 | < 0.1 |
| Cirrhosis | 0.2 | 1.3 | 0.2 | 0.4 | 0.1 | 0.1 | < 0.1 |
| Constipation, severe | 1.5 | 5.7 | 0.9 | 5.7 | 2.0 | 6.2 | 3.5 |
| Depression | 7.3 | 34.5 | 6.5 | 27.2 | 6.9 | 19.5 | 6.8 |
| Diabetes | 16.8 | 29.6 | 16.8 | 23.6 | 16.6 | 17.5 | 13.1 |
| Epilepsy | 1.2 | 10.5 | 1.1 | 3.9 | 0.9 | 2.2 | 0.7 |
| Hypertension | 54.1 | 62.1 | 50.6 | 65.3 | 62.3 | 65.0 | 62.2 |
| Hypothyroidism | 11.3 | 16.3 | 10.5 | 18.0 | 12.4 | 18.8 | 13.5 |
| Inflammatory bowel disease | 0.8 | 1.2 | 0.9 | 0.9 | 0.6 | 0.7 | 0.4 |
| Irritable bowel syndrome | 1.8 | 3.8 | 1.8 | 3.0 | 1.6 | 2.0 | 1.4 |
| Multiple sclerosis | 0.5 | 3.8 | 0.6 | 1.0 | 0.3 | 0.6 | 0.2 |
| Myocardial infarction | 4.3 | 7.9 | 3.8 | 8.0 | 5.1 | 7.2 | 5.8 |
| Parkinson disease | 1.4 | 10.6 | 0.7 | 10.8 | 1.9 | 8.2 | 2.4 |
| Peptic ulcer disease | 0.4 | 1.5 | 0.3 | 1.6 | 0.7 | 1.2 | 0.8 |
| Peripheral vascular disease | 1.8 | 4.5 | 1.5 | 3.9 | 2.4 | 3.0 | 2.4 |
| Psoriasis | 0.7 | 1.6 | 0.7 | 0.9 | 0.6 | 0.7 | 0.5 |
| Rheumatoid arthritis | 3.0 | 5.0 | 2.6 | 4.7 | 3.7 | 4.5 | 3.7 |
| Schizophrenia | 0.9 | 16.2 | 0.7 | 6.0 | 0.4 | 3.4 | 0.3 |
| Stroke or TIA | 9.6 | 30.8 | 6.9 | 33.8 | 12.6 | 33.6 | 17.8 |
Note: IQR = interquartile range, TIA = transient ischemic attack.
*Unless stated otherwise.