Statistical analysis
Sample size and power calculations were conducted before data collection. They were based on previous data from similar studies and determined using the Granmo 7.12 software program (Institut Municipal d’Investigació Mèdica, Spain), accepting an alpha risk of 0.05 and beta risk of 0.20 in a two-sided test, with an estimated common standard deviation of 1.3 points over the mean when it comes to VAS, priorizing to detect statistically significant difference greater than or equal to 1 units. Hence, 30 patients per group deemed adequate. This software is online and public. We describe those parameters that were not parametric as median [p25, p75] and those who were parametric as mean [ICFor the analysis of quantitative variables, a normality test (Kolmogorov Smirnov test with Dallar – Willkinson – Llilliefor p value) was carried out. If the data distribution followed the normal distribution, a t test was performed to check for differences between groups. However, if they did not follow a normal distribution, a Mann Whitney test was performed to check for differences between groups. Statistical analysis was carried out using Prism Graphpad version 8.0 software. Statistical significance was assumed for two-tailed p < 0.05. To check for differences between qualitative variables, a chi-square test with Fisher’s correction was performed.