Factor

Hazard ratio (95% CI)

p-value

Cardiac vs non-cardiac

1.42 (0.67 - 2.99)

0.349

Gender (female vs. male)

1.05 (0.54 - 2.04)

0.875

Age

1.04 (1.01 - 1.07)

0.003*

Hypertension

1.45 (0.68 - 3.07)

0.326

Diabetes

0.89 (0.43 - 1.82)

0.759

Hyperlipidemia

0.76 (0.17 - 3.28)

0.713

underlying disease

2.29 (1.15 - 4.58)

0.018*

Severity

Mild: reference

1.88 (0.43 - 8.17)

0.169