The analysis of variance (ANOVA) will be used to verify the homogeneity between the groups of quantitative variables. The Student's t-test will be used to compare two means from unpaired samples. To test whether the variances of the two groups are statistically equal, and if the data follows the normal distribution, the PROC TEST procedure of the SAS software will be used. The mixed effects linear models (random and fixed effects) will be used for the analysis of the ICIQ-S questionnaire. This method is used in the analysis of data where the responses of the same individual are grouped and the assumption of independence between observations in the same group is not adequate (Schall, 1991). In the mixed-effects model used, individuals will be considered as random effects and, as fixed effects, the groups, the times and the interaction between them. The adjustment of the model will be done through the PROC MIXED procedure of the statistical software SAS.