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. 2021 Nov 12;8:731261. doi: 10.3389/fcvm.2021.731261

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Copyright © 2021 Cheng, Meng, Wang, Jian, Fan, Feng, Qiao, Yang, Yuan, Li and Wu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Restricted spline curves for the associations between CAR and all-cause mortality, cardiovascular death, or MACE in patients with coronary total occlusion (CTO) undergoing percutaneous coronary intervention (PCI). Black lines represent the hazard ratio (HR), gray areas represent the 95% CIs. (A), Association between CAR and all-cause mortality. (B), Association between CAR and cardiovascular death. (C), Association between CAR and MACE. The HR (95% CI) were all adjusted according to Model 3 in the Cox analysis.