Comparison of patients parameters between studied groups.

a<p>Variables are Gaussian distributed. Results are presented as mean ± standard deviation. p values were calculated with unpaired t-student and ANOVA tests.</p>b<p>Variables are not-Gaussian distributed. Results are presented as median and interquartile range. p values were calculated using Kruskal-Wallis and Mann-Whitney U tests.</p><p>CRP – C-reactive protein, RBC – Red blood cell, WBC – White blood cell, FVC – Force vital capacity, FEV₁ – Forced expiratory volume.