Comparing tumour staging and grading systems: A case study and a review of the issues, using thymoma as a model Journal Article


Authors: Begg, C. B.; Cramer, L. D.; Venkatraman, E. S.; Rosai, J.
Article Title: Comparing tumour staging and grading systems: A case study and a review of the issues, using thymoma as a model
Abstract: We consider the problem of comparing alternative cancer staging and grading systems. Statistical comparisons are on the basis of the ability to predict survival, but more qualitative criteria, such as parsimony, and distinctive prognostic separability of the categories are relevant also. Furthermore, some staging systems are clearly ordinal, while others are not. Three candidate statistical measures are studied and compared: explained variation; area under the ROC curve; and the probability of concordance of stage and survival. Each of these has individual strengths and weaknesses. A data set involving the staging of thymoma is analysed in detail to motivate the problem and illustrate the results. Copyright (C) 2000 John Wiley and Sons, Ltd.
Keywords: cancer survival; survival analysis; cancer staging; lymphatic metastasis; neoplasm staging; cancer grading; classification; prediction; time factors; data interpretation, statistical; thymus gland; problem solving; thymoma; thymus neoplasms; roc curve; cancer statistics; humans; prognosis; article
Journal Title: Statistics in Medicine
Volume: 19
Issue: 15
ISSN: 0277-6715
Publisher: John Wiley & Sons  
Date Published: 2000-08-15
Start Page: 1997
End Page: 2014
Language: English
DOI: 10.1002/1097-0258(20000815)19:15<1997::aid-sim511>3.0.co;2-c
PUBMED: 10900448
PROVIDER: scopus
DOI/URL:
Notes: Export Date: 18 November 2015 -- Source: Scopus
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  1. Venkatraman Ennapadam Seshan
    382 Seshan
  2. Colin B Begg
    306 Begg
  3. Juan Rosai
    181 Rosai
  4. Laura Cramer
    17 Cramer