Statistical Analysis
Statistics were calculated using SPSS Statistics Software for Windows
version 23.0 (IBM Corporation, Armonk, New York). Normality was tested
with the Shapiro-Wilks test. Continuous data was analyzed using the
Student’s t-test for normally distributed data and the Mann-Whitney test
for non-normally distributed data. Categorical data was analyzed using
the χ2 test. Values are presented as mean ±standard deviation or median
and interquartile range (Q1-Q3) according to distribution for continuous
data and count and percentage for categorical data, unless otherwise
stated.