External validation of the International Metastatic Renal Cell Carcinoma (mRCC) Database Consortium prognostic model and comparison to four other models in the era of targeted therapy
Autor: | F. Donskov, Wanling Xie, Christian K. Kollmannsberger, Min-Han Tan, Connor Wells, Lauren C. Harshman, D. Y. Heng, Yulei Wang, G. A. Bjarnason, Toni K. Choueiri, Sun Young Rha, Lori Wood, J. Lebert, U. N. Vaishampayan, Brian I. Rini |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Journal of Clinical Oncology. 29:4560-4560 |
ISSN: | 1527-7755 0732-183X |
DOI: | 10.1200/jco.2011.29.15_suppl.4560 |
Popis: | 4560 Background: The Heng et al JCO 2009 prognostic model was developed in the age of VEGF-targeted therapy and this study serves as an external validation while comparing its performance to other models. Methods: 1,028 previously unanalyzed patients were used to externally validate the prognostic criteria for overall survival (OS). The model’s discriminatory value was compared to four other prognostic models using C-indices and Net Reclassification Improvement (NRI) (Pencina et al 2008). NRI indicates how the Heng et al model improves upon other models by reclassifying a percentage of patients (pts) into the more correct risk group based on the observed OS at 2 years. Results: The median OS of all pts was 18.8 mons. On multivariable analysis, the pre-identified Heng’s risk factors (anemia, thrombocytosis, neutrophilia, hypercalcemia, Karnofsky performance status |
Databáze: | OpenAIRE |
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