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Preoperative prognostic nomogram (probability table) for renal cell carcinoma based on TNM classification
Kent Kanao1, Ryuichi Mizuno, Eiji Kikuchi
1Department of Urology, Keio University School of Medicine, Tokyo, Japan. cev14660@nyc.odn.ne.jp
The Journal of Urology
|December 23, 2008
Summary
This study developed a new preoperative nomogram using TNM staging to predict survival for renal cell carcinoma patients. The tool accurately forecasts cause-specific survival, aiding surgical decision-making.
Area of Science:
- Urology
- Oncology
- Medical Statistics
Background:
- Prognostic nomograms are crucial for predicting malignant disease outcomes.
- Existing nomograms do not specifically predict preoperative survival for renal cell carcinoma (RCC).
Purpose of the Study:
- To develop and validate a preoperative prognostic nomogram for predicting cause-specific survival in renal cell carcinoma patients.
- To utilize TNM classification factors for enhanced prognostic accuracy.
Main Methods:
- A cohort of 545 RCC patients undergoing nephrectomy was analyzed.
- The 2002 UICC TNM system (6th edition) was applied.
- A Cox proportional hazards regression model and bootstrap analysis were used to develop and validate the nomogram.
Main Results:
- TNM factors were significant predictors of survival.
- The developed nomogram accurately predicted 1, 3, and 5-year cause-specific survival.
- The nomogram demonstrated excellent discrimination (Concordance Index: 0.81) and good calibration.
Conclusions:
- The preoperative nomogram provides valuable prognostic information for renal cell carcinoma patients.
- This tool can enhance informed consent discussions for surgical candidates.
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