Statistical analysis
SPSS v26 was used to perform statistical analysis (IBM©, Chicago, IL, USA). Using the Shapiro-Wilks test and histograms, the normality of the data distribution was determined. Parametric quantitative data were expressed as mean and standard deviation (SD) and analyzed by unpaired student t-test. Non-parametric quantitative data were expressed as the median and interquartile range (IQR) and analyzed using the Mann–Whitney test. Qualitative variables were given as frequency and percentage (%) and analyzed using the Chi-square or Fisher's exact test. A two-tailed 