… A recursive partitioning algorithm stratified CCs by 3-day mortality risk in each group. The process was repeated in … model to determine if CCs independently predicted 3-day mortality. Results: Overall, the derivation data set … decreased 3-day mortality odds (OR = 0.16, 95% CI = 0.09 to 0.29, p < 0.001). Conclusions: High-risk CCs were …