Fig. 1From: Assessing the performance of a method for case-mix adjustment in the Korean Diagnosis-Related Groups (KDRG) system and its policy implicationsThe selection of study data for analysis. PCCL patient clinical complexity level, AADRG age adjacent DRG. †The PCCL scores consist of 0, 2, 3, and 4 levels. ‡The appropriate sample size for analysis of variance (ANOVA) was determined using G*Power according to AADRGs. The sample size means the number of dataBack to article page