Figures & data
Table I. Comparison between 6th and 7th TNM systems for N0 tumors (modified from Rami-Porta et al. [Citation5].
Table II. Patient characteristics.
Table III. Classification of 452 node-negative NSCLC patients according to the 6th and 7th TNM systems.
Figure 1. Kaplan-Meier curves of overall survival comparing the 6th TNM system (stage IA in A; stage IB in B) with the patient sub-grouping resulting from the 7th TNM classification.
![Figure 1. Kaplan-Meier curves of overall survival comparing the 6th TNM system (stage IA in A; stage IB in B) with the patient sub-grouping resulting from the 7th TNM classification.](/cms/asset/f207845c-2b36-4686-87fe-10fb27e53965/ionc_a_742960_f0001_b.gif)
Table IV. Univariate survival analysis.