Table 2 Multivariable COX regression analysis of mortality in 109 critically ill COVID-19 patients.

From: Short term survival of critically ill COVID-19 Egyptian patients on assisted ventilation treated by either Dexamethasone or Tocilizumab

Variable

HR

(95% CI)

P Value

Use of vasopressor

0.593

(0.593–0.327)

0.086

GGC/consolidation

1.104

(0.753–1.627)

0.659

Ferritin ng/mL

1.028

(1.001–1.076)

0.021

PaO2/FiO2before treatment

1.037

(1.029–1.002)

0.034

PaO2/FiO2, 2 days after treatment

1.147

(1.002- 1.624)

 < 0.0001

Neutrophil/Lymphocyte ratio

2.4

(1.351- 4.185)

0.003

D-dimer ng/mL

0.965

(0.831–1.121)

0.640

TCZ/Dexamethasone

2.162

(1.144–4.087)

 < 0.0001

  1. Abbreviations GGC: ground glass opacities; COPD: Chronic obstructive pulmonary disease; PaO2/FiO2: ratio of partial pressure of arterial oxygen over fraction of inspired oxygen TCZ: Tocilizumab; P ˂ 0.05 considered statistically significant.
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