2.4 | Statistical analysis
Continuous variables are presented as median with interquartile range
(IQR 25th-75th percentile).
Categorical variables are expressed as numbers and percentages.
Continuous variables were compared using the ANOVA test or the
Mann-Whitney U test, as appropriate. Spearman’s correlation test was
used to test for any associations between two categorical variables. All
reported P values are two‐sided, with a P < 0.05 considered to
indicate statistical significance. Statistical analyses were performed
using the Statistical Package for Social Studies (SPSS), version 25.0
(IBM, Armonk, NY).