Statistical Analysis
Continous variables are presented as mean and standard deviation or
median and interquartile range where appropiate. Categorical variables
are presented as absolute frequencies. Comparison of normally
distributed continous variables was performed using Student t test. Two
tailed paired Student’s t-tests were performed for continuous paired
variables and Wilcoxon signed rank tests were used where appropriate.
Tests were 2 sided, and a value of P<0.05 was considered
statistically significant. All analyses were performed by using SPSS
(IBM SPSS Statistics, Version 22.0, Armonk, New York, USA).