2.4. Measurements and statistical analysis
Distribution of age, sex, initial clinical symptoms and on admission vital signs were compared between the two groups. Mortality rate, duration of hospitalization, mechanical ventilation and ICU length of stay were also evaluated.
The results were analyzed using SPSS v.25.0 software. Chi-square tests were performed to evaluate the difference in qualitative data. Shapiro-Wilk test was performed to assess the normality of data distribution. To compare the differences in the quantitative variables of groups, the independent t-test and One-way analysis of variance (ANOVA) was carried out. Values with p<0.05 were considered statistically significant.