Clinical and Laboratory Data
Demographic features and comorbid conditions of the patients, the date
of hospitalization, the date of symptom onset, the date of ABG sampling,
the results of ABG analysis, SpO2 level measured
simultaneously with ABG, the laboratory results (hemogram, C-reactive
protein-CRP, D-dimer, fibrinogen and ferritin) for the same day of ABG
sampling, anticoagulant therapy status, and the outcome of the disease
(death, transfer to ICU, or discharge) obtained from patients’ hospital
file and electronic medical record system of the hospital were recorded
on a data form.