Statistical Analysis
SPSS Windows version 21 was used for the statistical evaluation of the
data. Numerical values were presented as mean ± standard deviation or
median (lowest-highest) according to their compatibility with a normal
distribution. Categorical variables were expressed in numbers and total
percentages. For numerical data, in the comparison of two groups, the
independent samples t-test was used for normally distributed data, the
Mann-Whitney U test was used for non-normally distributed data, and the
chi-square test was used for categorical variables. For statistical
significance, the p-value was accepted to be < 0.05.