Statistical analysis
Data was analyzed using the IBM Statistical Package for the Social
Sciences version 22 (IBM SPSS Statistics for Windows, Chicago, IL, USA).
Normality of distribution of the variables was checked using the
Shapiro-Wilk test and Q-Q plots. The means were used when normality
distribution. The median was used for variables that did not show normal
distribution. The medians were compared using the Mann-Whitney U test.
In the case of categorical data, the comparison was made using the
chi-squared test. The p -value < 0.05 was accepted as
statistically significant.