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Table 1 Number (and %) of patients in each stage group as defined by the 7th and 8th Edition TNM staging systems

From: Validation of the 8th edition UICC/AJCC TNM staging system for HPV associated oropharyngeal cancer patients managed with contemporary chemo-radiotherapy

Stage 7th Ed TNM. Number (%) 8th Ed TNM Number (%)
I 1 (0.7%) 99 (64.7%)
II 13 (8.5%) 34 (22.2%)
III 33 (21.6%) 19 (12.4%)
IV 106 (69.3%) 1 (0.7%)
Total 153 153