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A nomogram based on clinical features and molecular abnormalities for predicting the prognosis of patients with acute myeloid leukemia

列线图 医学 比例危险模型 单变量 肿瘤科 髓系白血病 内科学 多元统计 多元分析 Lasso(编程语言) 曲线下面积 接收机工作特性 统计 数学 万维网 计算机科学
作者
Yuancheng Guo,Yujie Niu,Haiping Liang,Xiaoxiao Yang,Jinli Jian,Xiao Tang,Bei Liu
出处
期刊:Translational cancer research [AME Publishing Company]
卷期号:12 (12): 3432-3442
标识
DOI:10.21037/tcr-23-1192
摘要

Background: The high clinical and molecular heterogeneity of acute myeloid leukemia (AML) has led to an unsatisfactory clinical prognosis, thus we sought to incorporate both clinical features and molecular abnormalities to construct a new prognostic model. Methods: A database search of the Gene Expression Omnibus (GEO) revealed 238 cases of adult AML. The independent risk factors were assessed using both univariate and multivariate Cox regression, as well as least absolute shrinkage and selection operator (LASSO) regression. The predictive accuracy, discriminatory power and clinical applicability of the nomogram were determined by the consistency index (C-index), calibration curves and decision curve analysis (DCA). In addition, a single-centre cohort of 135 cases was used for external validation. Results: Multivariate Cox regression analysis showed that the independent influences on overall survival (OS) were age, type of disease, DNMT3A, IDH2 and TP53 mutations. The area under the curve (AUC) values for the training set were 0.755, 0.745 and 0.757 at 1, 2 and 3 years respectively; the AUC for the validation set were 0.648, 0.648 and 0.654 at 1, 2 and 3 years; and the AUC for the northwest China set were 0.692, 0.724 and 0.689 at 1, 2 and 3 years. The calibration and DCA indicated good consistency and clinical utility of the nomogram. Finally, younger (age <60 years) and elderly (age ≥60 years) patients were each divided into two risk groups with significantly different survival rates. Conclusions: A nomogram consisting of five risk factors was developed for forecasting the prognosis of AML with guaranteed reliability.
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