Statistical AnalysisComplete case analysis was done in which patients with any missing data were excluded, because the proportion of missing data was less than 5%.12,13 Descriptive statistics included mean (SD) for normally distributed continuous variables, median (IQR) for nonnormally distributed continuous variables, and counts with percentages for categorical variables. The balance of covariates between the 2 groups is described using absolute standardized mean difference (ASMD).