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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