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Prognostic stratification of the 6th and 7th editions of the UICC-AJCC TNM staging systems
| Model | Figure | Subgroups | LR χ2 | AIC valuea |
|---|---|---|---|---|
| 6th edition | 2a | I, II, III, IV | 96.9 | 2607.1 |
| 7th edition, full | 2b | IA, IB, IIA, IIB, IIIA, IIIB, IIIC, IV | 128.6 | 2592.9 |
| 7th edition, collapsed | I, II, III, IV | 99.0 | 2605.4 |
AIC Akaike information criteria, LR likelihood ratio
aA lower AIC value represents a better discriminatory model
