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. 2024 Nov 1;11:1470987. doi: 10.3389/fcvm.2024.1470987

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© 2024 Zhou, Zhang, Qiao, Chen, Guo, Fu, Zheng, Du and Dong.

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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Kaplan–Meier estimates of mortality in the derivation and validation cohorts. The survival rate was observed using the Kaplan–Meier curves and compared using the log-rank test. (A) Kaplan–Meier estimates of the survival rate in the derivation cohort using the mortality prediction model (p < 0.0001). (B) Kaplan–Meier estimates of the survival rate in the external validation cohort using the mortality prediction model.As shown by the Kaplan–Meier curves, the two cohorts showed significant differences in mortality among the three risk-score groups (p < 0.0001).