Abstract
Background
Nomograms specifically used to predict the prognosis of ascending type nasopharyngeal carcinoma (NPC) have not been constructed.
Methods
Data of ascending type (T3-4N0-1M0) NPC from the Surveillance, Epidemiology, and End Results (SEER) database between 2004 and 2015 were extracted.
Results
Altogether 862 patients with ascending type NPC were enrolled, including 603 in training cohort and 259 in validation cohort. Age, marital status, pathology, grade, tumor size, T classification, and chemotherapy were the independent prognostic factors for overall survival (OS). Age, marital status, pathology, grade, and chemotherapy were the independent prognostic factors for cancer-specific survival (CSS). In training cohort, the concordance index of the OS and CSS nomograms were 0.694 (95% confidence interval [CI], 0.677–0.711) and 0.678 (95%CI, 0.659–0.697), respectively, while those in validation cohort were 0.740 (95%CI, 0.715–0.765) and 0.708 (95%CI, 0.679–0.737), separately.
Conclusion
The as-constructed nomograms for ascending type NPC could provide accurate prognostic predictions of OS and CSS.
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