… A recursive partitioning algorithm stratified CCs by 3-day mortality risk in each group. The process was repeated in … data set. In total, 43 complaints were categorized, and 12 CCs were identified as high-risk. When controlled for … decreased 3-day mortality odds (OR = 0.16, 95% CI = 0.09 to 0.29, p < 0.001). Conclusions: High-risk CCs were …