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. 2021 Feb 18;10:623818. doi: 10.3389/fonc.2020.623818

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Copyright © 2021 Qu, Liu, Jiao, Zhang, Wang, Li, Dong and Cui

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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Performance of cox proportional hazard (CPH) model. (A) CPH model has 0.17 of IBS (below 0.25 obviously). (B) CPH model make a median absolute error of 1.615 patients and mean absolute error of 2.223 patients during 12000 days of follow-up time in testing set. (C) Predicted and actual survival curves plotted by CPH model. It made a median absolute error of 13.726 and mean absolute error of 14.626. As we can see from the figure, some spots were plotted outside the confidence intervals.