Background Thymic carcinoma (TC) is a rare and aggressive mediastinal malignancy with poor prognosis. Our study aimed to develop a nomogram to predict overall survival (OS) of TC patients. Method A total of 156 patients confirmed TC between 1996 and 2023 were selected from our database. They were divided into training cohort, validation cohort one and validation cohort two. A nomogram was constructed based on the risk factors affecting prognosis using a Cox proportional hazards regression model. The discrimination and calibration of the nomogram were evaluated by C-index, AUC and curve of calibration. The three cohorts were divided into low-risk and high-risk subgroups.
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Overall survival
Timeframe: From date of accepting surgery until the date of final documented or date of death from any cause, whichever came first, assessed up to 325 months