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Table 2 Distribution of T categories as defined by the 7th and 8th editions

From: Comparison of the seventh and eighth editions of the UICC/AJCC staging system for nasopharyngeal carcinoma: analysis of 1317 patients treated with intensity-modulated radiotherapy at two centers

 

8th edition

T1

T2

T3

T4

Total

7th edition

T1

324 (24.6%)

8 (0.6%)

  

332 (25.2%)

T2

 

166 (12.6%)

  

166 (12.6%)

T3

  

420 (31.8%)

 

420 (31.8%)

T4

 

19 (1.4%)

116 (8.8%)

264 (20.0%)

399 (30.3%)

Total

324 (24.6%)

193 (14.6%)

536 (40.7%)

264 (20.0%)

1317