All tests are two-tailed and a p value 0.05 was considered significant. The difference between the two groups will be evaluated with Student's T test for normally distributed data, and with Mann-Whitney's U test, for those with not normal distribution. The normality of distribution will be evaluated with the Kolmogorov-Smirnov test. Any correlations among the variables under evaluation will be assessed by Spearman r correlation. Variables will be compared using the Chi-squared test or Fisher exact test for categorical variables.