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. 2021 Dec 14;8:762570. doi: 10.3389/fmed.2021.762570

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Copyright © 2021 Deng, Zhang, Sun and Wang.

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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Establishment of a nomogram for overall survival (OS) prediction. A nomogram for predicting 1-, 3-, and 5-year OS was constructed based on three independent prognostic factors: the risk score, ECOG, and liver cirrhosis. The detailed 1-, 3-, and 5-year OS rates were displayed in the nomogram (A). Calibration plots showed that the nomogram performed well in the predicted 1- (B), 3- (C), and 5-year (D) survival probabilities with an ideal model. The black line represents the “ideal” line of a perfect match between the predicted and observed survival. The blue line indicates the performance of the proposed nomogram. X-axis is the nomogram predicted probability of survival, and Y-axis is actual survival. Blue dots are subcohorts of the data set; red vertical bars represent a 95% CI. KM curves of three risk subgroups stratified by the tertiles of Nomo-scores showed the healthy performance of the nomogram (E).