Statistical analysis
Study data were analyzed with the SPSS for Windows 17.0 package program
(SPSS Inc., Chicago, IL). For descriptive measures, mean and standard
deviation (SD) were used. The variables were considered to be
distributed regularly by Shapiro-Wilk Test and comparisons between
groups were made by Independent Samples T-test, one way ANOVA. The
differences in each group before and after the treatment were identified
by paired samples T-test. A p-value of < 0.05 was considered
as being statically significant.