Development and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markers

Abstract Background The potential of the application of artificial intelligence and biochemical markers of oxidative stress to predict the prognosis of older patients with gastric cancer (GC) remains unclear. Methods This retrospective multicenter study included consecutive patients with GC aged ≥ 6...

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Main Authors: Xing-Qi Zhang, Ze-Ning Huang, Ju Wu, Chang-Yue Zheng, Xiao-Dong Liu, Ying-Qi Huang, Qi-Yue Chen, Ping Li, Jian-Wei Xie, Chao-Hui Zheng, Jian-Xian Lin, Yan-Bing Zhou, Chang-Ming Huang
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Language:English
Published: BMC 2025-02-01
Series:BMC Cancer
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Online Access:https://doi.org/10.1186/s12885-025-13545-x
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author Xing-Qi Zhang
Ze-Ning Huang
Ju Wu
Chang-Yue Zheng
Xiao-Dong Liu
Ying-Qi Huang
Qi-Yue Chen
Ping Li
Jian-Wei Xie
Chao-Hui Zheng
Jian-Xian Lin
Yan-Bing Zhou
Chang-Ming Huang
author_facet Xing-Qi Zhang
Ze-Ning Huang
Ju Wu
Chang-Yue Zheng
Xiao-Dong Liu
Ying-Qi Huang
Qi-Yue Chen
Ping Li
Jian-Wei Xie
Chao-Hui Zheng
Jian-Xian Lin
Yan-Bing Zhou
Chang-Ming Huang
author_sort Xing-Qi Zhang
collection DOAJ
description Abstract Background The potential of the application of artificial intelligence and biochemical markers of oxidative stress to predict the prognosis of older patients with gastric cancer (GC) remains unclear. Methods This retrospective multicenter study included consecutive patients with GC aged ≥ 65 years treated between January 2012 and April 2018. The patients were allocated into three cohorts (training, internal, and external validation). The GC-Integrated Oxidative Stress Score (GIOSS) was developed using Cox regression to correlate biochemical markers with patient prognosis. Predictive models for five-year overall survival (OS) were constructed using random forest (RF), decision tree (DT), and support vector machine (SVM) methods, and validated using area under the curve (AUC) and calibration plots. The SHapley Additive exPlanations (SHAP) method was used for model interpretation. Results This study included a total of 1,859 older patients. The results demonstrated that a low GIOSS was a predictor of poor prognosis. RF was the most efficient method, with AUCs of 0.999, 0.869, and 0.796 in the training, internal validation, and external validation sets, respectively. The DT and SVM models showed low AUC values. Calibration and decision curve analyses demonstrated the considerable clinical usefulness of the RF model. The SHAP results identified pN, pT, perineural invasion, tumor size, and GIOSS as key predictive features. An online web calculator was constructed based on the best model. Conclusions Incorporating the GIOSS, the RF model effectively predicts postoperative OS in older patients with GC and is a robust prognostic tool. Our findings emphasize the importance of oxidative stress in cancer prognosis and provide a pathway for improved management of GC. Trial registration Retrospectively registered at ClinicalTrials.gov (trial registration number: NCT06208046, date of registration: 2024–05-01).
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spelling doaj-art-da0f3edbc9bc4a9b984d15a2e6b7d3ef2025-02-02T12:28:58ZengBMCBMC Cancer1471-24072025-02-0125111210.1186/s12885-025-13545-xDevelopment and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markersXing-Qi Zhang0Ze-Ning Huang1Ju Wu2Chang-Yue Zheng3Xiao-Dong Liu4Ying-Qi Huang5Qi-Yue Chen6Ping Li7Jian-Wei Xie8Chao-Hui Zheng9Jian-Xian Lin10Yan-Bing Zhou11Chang-Ming Huang12Department of Gastric Surgery, Fujian Medical University Union HospitalDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of General Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of Gastric Surgery, Fujian Medical University Union HospitalDepartment of General Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Gastric Surgery, Fujian Medical University Union HospitalAbstract Background The potential of the application of artificial intelligence and biochemical markers of oxidative stress to predict the prognosis of older patients with gastric cancer (GC) remains unclear. Methods This retrospective multicenter study included consecutive patients with GC aged ≥ 65 years treated between January 2012 and April 2018. The patients were allocated into three cohorts (training, internal, and external validation). The GC-Integrated Oxidative Stress Score (GIOSS) was developed using Cox regression to correlate biochemical markers with patient prognosis. Predictive models for five-year overall survival (OS) were constructed using random forest (RF), decision tree (DT), and support vector machine (SVM) methods, and validated using area under the curve (AUC) and calibration plots. The SHapley Additive exPlanations (SHAP) method was used for model interpretation. Results This study included a total of 1,859 older patients. The results demonstrated that a low GIOSS was a predictor of poor prognosis. RF was the most efficient method, with AUCs of 0.999, 0.869, and 0.796 in the training, internal validation, and external validation sets, respectively. The DT and SVM models showed low AUC values. Calibration and decision curve analyses demonstrated the considerable clinical usefulness of the RF model. The SHAP results identified pN, pT, perineural invasion, tumor size, and GIOSS as key predictive features. An online web calculator was constructed based on the best model. Conclusions Incorporating the GIOSS, the RF model effectively predicts postoperative OS in older patients with GC and is a robust prognostic tool. Our findings emphasize the importance of oxidative stress in cancer prognosis and provide a pathway for improved management of GC. Trial registration Retrospectively registered at ClinicalTrials.gov (trial registration number: NCT06208046, date of registration: 2024–05-01).https://doi.org/10.1186/s12885-025-13545-xElderlyGastric cancerOxidative stressMachine learningOverall survival
spellingShingle Xing-Qi Zhang
Ze-Ning Huang
Ju Wu
Chang-Yue Zheng
Xiao-Dong Liu
Ying-Qi Huang
Qi-Yue Chen
Ping Li
Jian-Wei Xie
Chao-Hui Zheng
Jian-Xian Lin
Yan-Bing Zhou
Chang-Ming Huang
Development and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markers
BMC Cancer
Elderly
Gastric cancer
Oxidative stress
Machine learning
Overall survival
title Development and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markers
title_full Development and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markers
title_fullStr Development and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markers
title_full_unstemmed Development and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markers
title_short Development and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markers
title_sort development and validation of a prognostic prediction model for elderly gastric cancer patients based on oxidative stress biochemical markers
topic Elderly
Gastric cancer
Oxidative stress
Machine learning
Overall survival
url https://doi.org/10.1186/s12885-025-13545-x
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