Table 3 Cox regression analysis of severe acute respiratory distress syndrome patients

Age

1.00

0.98–1.04

0.5190

Male gender

1.13

0.55–2.34

0.7331

Body mass index

0.99

0.95–1.04

0.7431

Sequential Organ Failure Assessment

0.97

0.82–1.15

0.7618

Acute Physiology and Chronic Health Evaluation (APACHE II)

1.06

0.98–1.14

0.1287

Septic shock

0.74

0.24–2.33

0.6049

Arterial hypertension

1.38

0.66–2.91

0.3935

History of stroke

0.60

0.12–3.04

0.5358

Elective surgery

0.69

0.31–1.53

0.3556

Corticosteroid therapy

1.16

0.54–2.50

0.6983

No statin therapy

5.47

1.38–21.70

0.0156