Table 2

Multivariate analysis for in-hospital mortality and for secondary combined endpoint

Multivariate analysis for in-hospital mortality
OR95% CIP value
Current smoker1.771.11 to 2.82 0.017
Former smoker1.321.00 to 1.73 0.049
Age 52–66 years old1.741.10 to 2.79 0.020
Age 66–77 years old4.562.90 to 7.19 <0.001
Age >77 years old10.636.78 to 16.66 <0.001
Hypertension1.711.33 to 2.2 <0.001
Lung disease1.060.81 to 1.390.679
Any cardiac disease1.381.08 to 1.76 0.010
Elevated CRP2.111.23 to 3.630.007
Elevated LDH2.611.91 to 3.58 <0.001
Elevated ferritin1.220.96 to 1.530.101
  Multivariate analysis for the composite endpoint*
OR 95% CI P value
Current smoker1.681.16 to 2.43 0.006
Former smoker1.090.86 to 1.390.467
Age 52–66 years old1.331.01 to 1.77 0.044
Age 66–77 years old1.771.31 to 2.40 <0.001
Age >77 years old2.641.95 to 3.57 <0.001
Hypertension1.651.35 to 2.03 <0.001
Lung disease1.261.00 to 1.580.054
Any cardiac disease1.531.23 to 1.91 <0.001
Elevated CRP2.271.50 to 3.44 <0.001
Elevated LDH2.161.70 to 2.75 <0.001
Elevated ferritin1.611.32 to 1.96 <0.001

  • Statistically significant p value: p <0.05.

  • *Composite endpoint of intensive care unit admission, prone position or death.

  • CI, Confidence interval; CRP, C reactive protein; LDH, lactate dehydrogenase.