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中华普外科手术学杂志(电子版) ›› 2023, Vol. 17 ›› Issue (04) : 393 -397. doi: 10.3877/cma.j.issn.1674-3946.2023.04.012

论著

结肠癌患者淋巴结转移预测模型的建立
徐伯麒, 陶亮, 章帆, 毛忠琦()   
  1. 215000 江苏苏州,苏州大学附属第一医院普外科
  • 收稿日期:2022-09-15 出版日期:2023-08-26
  • 通信作者: 毛忠琦

Establishment of a nomogram model for lymph node metastasis in colon cancer patients

Boqi Xu, Liang Tao, Fan Zhang, Zhongqi Mao()   

  1. Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou Jiangsu Province 215000, China
  • Received:2022-09-15 Published:2023-08-26
  • Corresponding author: Zhongqi Mao
  • Supported by:
    The National Science Foundation for Young Scholars of China(81500482); The Natural Science Foundation for Young Scholars of Jiangsu Province(BK20150105); Jiangsu Province Post Doctoral Fund(1501121B)
引用本文:

徐伯麒, 陶亮, 章帆, 毛忠琦. 结肠癌患者淋巴结转移预测模型的建立[J]. 中华普外科手术学杂志(电子版), 2023, 17(04): 393-397.

Boqi Xu, Liang Tao, Fan Zhang, Zhongqi Mao. Establishment of a nomogram model for lymph node metastasis in colon cancer patients[J]. Chinese Journal of Operative Procedures of General Surgery(Electronic Edition), 2023, 17(04): 393-397.

目的

分析结肠癌患者淋巴结转移的危险因素,构建列线图模型。

方法

回顾性分析2020年04月至2021年09月319例接受结肠癌根治术的患者临床资料,运用统计学软件SPSS 22.0进行数据分析,通过卡方检验或Fisher精确检验对结肠癌淋巴结转移可能相关的危险因素进行单因素分析,将所有P<0.100的变量筛选出来,进一步进行多因素Logistic回归分析,筛选出独立危险因素并建立列线图模型。通过绘制受试者工作特征曲线与校准曲线评估列线图模型的预测性能。采用Bootstrap法对模型进行内部验证。采用DCA曲线验证模型的临床获益度。

结果

150例患者(47.0%)发生了淋巴结转移,多因素Logistic回归分析显示,浸润深度T3-4OR=14.119,P=0.011)、有脉管侵犯(OR=3.551,P=0.008)、癌胚抗原>5.0 ng/ml(OR=1.985,P=0.010)、糖类抗原199>37.0 U/ml(OR=5.310,P=0.000)是结肠癌患者淋巴结转移的独立危险因素。

结论

基于独立危险因素建立的列线图模型对预测结肠癌患者淋巴结转移具有良好的敏感性和特异性,具备一定的临床价值。

Objective

To predict the risk factors of lymph node metastasis in patients with colon cancer,a nomogram model was established.

Methods

A total of 319 patients who received surgery for colon cancer in The First Affiliated Hospital of Soochow University from April 2020 to September 2021 were included. Based on the association strength of univariate and multiple Logistic regressions,the potential risk factors for lymph node metastasis were identified from the characteristic variables,and then a Nomogram model was generated. The Receiver Operating Characteristic Curve was used to evaluated the prediction performance of this nomogram model. This nomogram model was validated and calibrated using Bootstrap method. The model was also evaluated for clinical significance using the Decision Curve Analysis curve.

Results

Among 319 colon cancer patients,lymph metastasis occurred in 150 patients(47%). The multiple logistic regressions showed that the depth of invasion(OR=14.119,P=0.011),vascular invasion(OR=3.551,P=0.008),Carcinogenic Embryonic Antigen>5.0 ng/ml(OR=1.985,P=0.010),and Carbohydrate antigen199>37.0 U/ml(OR=5.310,P=0.000)were independent risk factors for lymph node metastasis in colon cancer patients.

Conclusion

The nomogram based on independent risk factors identified from our method showed a good performance in predicting lymph node metastasis in colon cancer.

表1 319例接受结肠癌根治术患者一般资料的单因素分析
表2 结肠癌患者淋巴结转移危险因素的单因素及多因素Logistic回归分析
图1 预测结肠癌淋巴结转移的危险因素的列线图模型
图2 预测结肠癌淋巴结转移的危险因素的列线图模型和单项指标的ROC曲线
图3 列线图模型经 Broostrap 法抽样1 000次进行内验证注:A=列线图模型的校准曲线;B=列线图模型的ROC曲线。
图4 DCA曲线法展示列线图的临床获益度和单项指标的临床获益度
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