For continuous outcomes visual analogue scale scores the mean difference between the groups assessed was used; odds ratios OR were calculated for nominal dichotomous out-comes; and 95% confidence intervals 95% CI were used for estimates.
Medida del efecto de los tratamientos Para desenlaces continuos puntos de escala visual análoga se usó la diferencia media entre los grupos evaluados, para desenlaces nominales dicotómicos se calculó el odds ratio OR y para los estimadores se calcularon intervalos de confianza al 95% IC 95%.