Statistical analysis
Data analysis was performed using the IBM SPSS Statistics software (Version 22.0; IBM Corp, Armonk, NY, USA). The Kolmogorov-Smirnov test was used to verify the normality of the data. The descriptive data are shown using the mean (standard deviation), median (25–75th percentile), and absolute frequency (percentage) as appropriate. Inferential analysis was performed in order to identify the differences between the groups (BLG and FLG) through the Wilcoxon rank sum test for the continuous variables and Chi-square test (χ