The Pearson Chi2 test was used to cross match variables, the Mann Whitney U test was used compare ranges. The Kruskal-Wallis non-parametric test for analysis of variance by ranks was also used.
Se hizo análisis con la prueba de Chi de Pearson para cruzar variables categóricas, prueba U de Mann Whitney para comparar rangos, y prueba de ANOVA no paramétrica de Kruskall Wallis.