Patient Characteristics
| Characteristic | No. of patients (n = 99) |
|---|---|
| Mean age (y) | 63 ± 18 |
| Sex | |
| Male | 39 |
| Female | 60 |
| History of cardiopulmonary disease | 48 |
| Including obstructive lung disease | 14 |
| Referring department | |
| Cardiology | 44 |
| Emergency room/reanimation | 22 |
| Internal medicine | 10 |
| Surgery | 8 |
| Other medical departments | 15 |