Efficacy
Table Results of the within‐subject difference (VAS5) and treatment effect.Abbreviation: CI, confidence interval; POD, postoperative days; SD, standard deviation; VAS, visual analog scale; ΔVASThe within‐subject VASResults of the within‐subject difference (VASAbbreviation: CI, confidence interval; POD, postoperative days; SD, standard deviation; VAS, visual analog scale; ΔVASSubanalysis results of adjusted treatment effect by covariate.Abbreviations: CI, confidence interval; VAS, visual analog scale.Figure Distribution of ΔVASDistribution of baseline VAS (a) and ΔVAS