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. 2021 Aug 12;11:685047. doi: 10.3389/fonc.2021.685047

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Copyright © 2021 Zeng, Huang, Liu, Huang, Zhao, Li, Tian and Li

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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The calibration curves of the nomogram for predicting progression-free survival (PFS) in both the training and validation cohorts. The x-axis represents the nomogram predicted probability, and the y-axis represents the actual probability of PFS. The red line indicates the performance of the nomogram, of which a closer fit to the gray line represents a better prediction. Calibration curves of the nomogram for predicting PFS at (A) 3, (B) 6, and (C) 12 months in the training cohort. Calibration curves of the nomogram to predict PFS at (D) 3, (E) 6, and (F) 12 months in the validation cohort.