2.4, Statistical analyses
The statistical analyses were conducted using the SPSS software program (IBM SPSS Statistics, Version 22 for Windows; IBM Corp., Armonk, N.Y., USA). The parameters were compared using Wilcoxon’s signed-rank test.P values of <0.05 were considered to indicate statistical significance. Bonferroni’s multiple comparison test was used for multiple comparisons, and in Table 2, P values of <0.017 were considered to indicate statistical significance among the power of I, E and E/I. Table data are mainly expressed as the median and the first and the third quartile values.
Results