The American Joint Committee on Cancer. Criteria for prognostic factors and for an enhanced prognostic system.
The American Joint Committee on Cancer proposes the following criteria for evaluating putative prognostic factors: they must be (1) significant, (2) independent, and (3) clinically important. Furthermore, we suggest the criteria for selecting a prognostic system that includes TNM and new prognostic factors. These criteria are: (1) easy for physicians to use; (2) provides predictions for all types of cancer; (3) provides the most accurate relapse and survival predictions at diagnosis and for every year lived for each patient; (4) provides group survival curves, where the grouping can be by any variable including outcome and therapy; (5) accommodates missing data and censored patients and is tolerant of noisy and biased data; (6) makes no a priori assumptions regarding the type of data, the distribution of the variables, or the relationships among the variables; (7) can test putative prognostic factors for significance, independence, and clinical importance; (8) accommodates treatment information in the evaluation of prognostic factors; (9) accommodates new putative prognostic factors without changing the model; (10) accommodates emerging diagnostic techniques; (11) provides information regarding the importance of each predictive variable; and (12) is automatic.
Burke
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Department of Medicine, School of Medicine, University of Nevada, Reno 89520.
Henson
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DE
D006801:Humans; D009367:Neoplasm Staging; D009369:Neoplasms / Q000175:diagnosis* / Q000401:mortality; D009938:Organizations; D011379:Prognosis; D015996:Survival Rate; D014481:United States