Statistical analysis
REGRESSION
Based on the results of the studies with the most robust methodology [Baseline data for both groups were summarised using means and standard deviations for continuous variables and absolute and relative frequencies for categorical data. We performed a chained equation multiple imputation with 20 imputed datasets for missing data.The between group differences were modelled using linear regression for quantitative variables and expressed as mean differences and 95% confidence intervals. For these between group differences, a Cohen’s All statistical analyses were performed with Stata version 17.1 (StataCorp LLC, College Station, Texas, USA).