Demographic and clinical characteristics of the study sample
| Characteristic | No. (%)* |
|---|---|
| Sex | |
| Male | 14 (42) |
| Female | 19 (58) |
| Age, yr; mean ± SD (range) | 81 ± 7 (65–95) |
| Comorbidities | |
| Coronary artery disease | 18 (55) |
| Congestive heart failure | 15 (45) |
| Chronic pulmonary disease | 13 (39) |
| Cerebrovascular disease | 8 (24) |
| Dementia | 7 (21) |
| Diabetes without complications | 6 (18) |
| Peripheral vascular disease | 5 (15) |
| Diabetes with complications | 3 (9) |
| Severe renal disease | 3 (9) |
| Connective tissue disease | 2 (6) |
| Peptic ulcer disease | 2 (6) |
| Hemiparesis | 1 (3) |
| Moderate or severe liver disease | 1 (3) |
SD = standard deviation.
↵* Unless indicated otherwise.