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Statistical Analysis

ZL Zhengtong Lv
JW Jianlong Wang
XW Xuan Wang
MM Miao Mo
GT Guyu Tang
HX Haozhe Xu
JW Jianye Wang
YL Yuan Li
ML Ming Liu
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All data sorting and analyses were completed by the R 3.6.1 software. For continuous variables with normal distribution and homogeneity of variance, an independent sample t-test was used; otherwise, Wilcoxon rank-sum test was selected. Pearson correlation coefficient test was used to analyze the correlation. A value of p < 0.05 was considered significant. Based on the results of the multivariate Cox proportional hazards analysis, a nomogram was developed to predict 1-, 3-, and 5-year bRFS rates. To evaluate the prediction performance of the nomogram, the consistency index (C index), ROC, and calibration curve were used to evaluate the nomogram.

Copyright and License information:  ©2021 Lv, Wang, Wang, Mo, Tang, Xu, Wang, Li and Liu.
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