Statistical Analysis
Categorical data were reported as frequency and percentage, and
comparisons between groups were estimated by chi-square or Fisher tests,
as appropriate. Continuous variables were reported as the median and
interquartile range, and Mann-Whitney U test was used to assess
differences between groups. The statistical significance level was set
at p<0.05.
The statistical software package R (version 4.0.3) was used for data
analysis (R Foundation for Statistical Computing, Vienna,
Austria)13.