Construction and Validation of Survival Prediction Models for Tongue Squamous Cell Carcinoma Based on SEER and TCGA Databases
摘要
Tongue squamous cell carcinoma (TSCC), the most prevalent oral cancer, is marked by early metastasis and poor prognosis despite early diagnosability, and is the first nomogram integrating SEER and TCGA databases for TSCC prognosis prediction.
Research MethodsClinical data of TSCC patients were retrieved from SEER and TCGA. Cox proportional hazards regression was performed to screen and identify independent prognostic factors. A nomogram was constructed to estimate 1-, 3-, and 5-year overall survival (OS) and validated using time-dependent ROC curves, concordance index (C-index), and calibration plots. Risk stratification was performed based on the total nomogram points, and Kaplan–Meier analysis compared OS among risk groups.
ResultsTumor stage, invasion depth, lymph node metastasis, and vascular invasion were identified as independent prognostic factors. The nomogram demonstrated strong predictive accuracy (AUC > 0.75, C-index = 0.72) with well-calibrated survival estimates. High-risk patients exhibited significantly reduced survival (p < 0.001).
ConclusionThis validated nomogram integrates key clinicopathological predictors to provide individualized OS estimates for TSCC. It facilitates real-time risk stratification and helps identify high-risk patients who may benefit from intensive adjuvant therapy and closer surveillance.