Cause of mortality

Cases

Pneumonia

14 (38.9%)

Exacerbation of COPD^a

9 (25.0%)

Cardiac failure

4 (11.1%)

Lung cancer

2 (5.6%)

Acute myocardial infarction

1 (2.8%)

Rupture of aortic aneurysm

1 (2.8%)

Sepsis

1 (2.8%)

Renal failure

1 (2.8%)

Unknown

3 (8.3%)

Total

36 (100%)