Fig. 3

Odds ratio graphs for severe respiratory failure (non-adjusted and adjusted). Legend: dotted line (------): non-adjusted logistic regression analyses. Continuous line ( ): adjusted logistic regression analyses for all significant variables. Variables evaluated without adjustment: Age > 80 = individuals aged 80 years or more; CKD = chronic kidney disease; CT scan = thomographic lung involvement over 50%; Marital status; Atrial Fib = prior atrial fibrillation, Vitamin D = vitamin D < 40 ng/dl; IL-6 = interleukin 6 > 40 pg/mL, CRP = C-reactive protein> 80 mg/L; D dimer = d dimer> 1000 ng/ml, Hemoglobin = hemoglobin< 12 g/mL; Leucocytes = leucocytes > 10.000 μL; Lymphocytes = lymphocytes < 600/μL; AST = aspartate aminotransferase > 50 U/mL; Creatinine = creatinine > 1.1 mg/dL; Myoglobin = myoglobin> 65 ng/mL). Variables evaluated with adjustment: Age > 80 Adj = individuals aged 80 years or more; CKD Adj = chronic kidney disease; CT scan Adj = lung involvement over 50%; Marital status Adj; Atrial Fib Adj = prior atrial fibrillation, Vitamin D Adj = vitamin D < 40 ng/dl; IL-6 Adj = interleukin 6 > 40 pg/mL, CRP Adj = C-reactive protein> 80 mg/L; D dimer Adj = d dimer> 1000 ng/ml, Hemoglobin Adj = hemoglobin< 12 g/mL; AST Adj = aspartate aminotransferase > 50 U/mL; Creatinine Adj = creatinine > 1.1 mg/dL; Myoglobin Adj = myoglobin> 65 ng/mL)