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ORIGINAL RESEARCH article

Front. Oncol.

Sec. Gastrointestinal Cancers: Gastric and Esophageal Cancers

Construction and validation of a risk prediction model for oral frailty in elderly patients with esophageal cancer

Provisionally accepted
Jingwen  LvJingwen Lv1Jianwei  LiJianwei Li2Yu  WangYu Wang3Sipeng  LiuSipeng Liu4Yunhong  DuYunhong Du2Li  WangLi Wang2Hui  WangHui Wang1*Yao  ShiYao Shi1*
  • 1The First Affiliated Hospital of Naval Medical University, Shanghai, China
  • 2Qingdao Hiser Hospital, Qingdao, China
  • 3Hunan University of Chinese Medicine, Changsha, China
  • 4Nanchang University Queen Mary School, Nanchang, China

The final, formatted version of the article will be published soon.

Background To explore the current status of oral frailty in elderly patients with esophageal cancer (EC), construct and verify the risk prediction model of oral frailty in elderly patients with EC, so as to provide a reference for early identification and intervention of oral frailty in this population. Methods In this study, 390 elderly patients with EC treated in the First Affiliated Hospital of Naval Medical University from January, 2023 to June, 2024 were selected as the training group, and 165 elderly patients with EC treated in Qingdao Hiser Hospital Affiliated of Qingdao University from July, 2024 to July, 2025 were selected as the validation group. A cross-sectional study was used for data collection. Three types of assessment tools were used, including the self-made general information questionnaire, outcome variable assessment scale and candidate variable assessment scale. The patients were divided into two groups according to the occurrence of oral frailty. LASSO regression and multivariate analysis were performed using SPSS 27.0 and R 4.4.3 software to identify the independent risk factors for oral frailty. The Bootstrap method with 1000 repeated samplings was used for internal validation of the model, while external validation was conducted using data from the validation group. Results The incidence of oral frailty in the training group and validation group was 45.90% and 43.03%, respectively. The results showed that radiotherapy history, tumor staging, physical frailty, smoking history, age, and nutritional status were independent risk factors for oral frailty in elderly patients with EC (P <0.05). Conclusion The risk of oral frailty in elderly patients with EC is high, which is related to radiotherapy history, tumor staging, physical frailty, smoking history, age, nutritional status and other factors. The oral frailty risk prediction model for elderly patients with EC constructed in this study has good predictive efficacy in internal and external validation, which can provide a reference for medical staff to identify high-risk groups early and take targeted intervention measures.

Keywords: elderly patients, esophageal cancer, nomogram, Oral frailty, Risk prediction model

Received: 30 Oct 2025; Accepted: 15 Dec 2025.

Copyright: © 2025 Lv, Li, Wang, Liu, Du, Wang, Wang and Shi. 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) or licensor 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.

* Correspondence:
Hui Wang
Yao Shi

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