Statistical analysis
Categorical data were presented as frequencies and percentages and analysed using Fisher’s exact test for intergroup comparisons and Cochran’s q test followed by multiple pairwise comparisons using McNemar’s test with the Bonferroni correction. Quantitative data were presented as mean values and standard deviations. Normality was checked for all quantitative variables using descriptive statistics, plots (histogram, box and whisker and Q-Q plots), and normality tests. Normally distributed continuous data were analysed using the independent-sample 