2.7. Statistical Analyses
We determined the sample size with an a priori analysis conducted with G* Power 3.1 software [We used commercial software IBM SPSS (version 26.0; IBM Corp., Armonk, NY, USA) to perform the rest of the analyses based on the principle of the intention to treat. Results are reported as mean and standard deviation (SD). We uniformly set the level of statistical significance at We checked the normality of data distribution using the Kolmogorov–Smirnov test. We transformed the non-normal variables, first, into a percentile rank and, second, into a normally distributed variable through the inverse normal [