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Table 3 Distributions of patients in P67.5 and P70 study according to the UICC 2002 staging system

From: Propensity score matching analysis of a phase II study on simultaneous modulated accelerated radiation therapy using helical tomotherapy for nasopharyngeal carcinomas

Stage P67.5 P70
N0 N1 N2 N3 Total N0 N1 N2 N3 Total
T1 7 17 15 2 41 8 19 15 4 46
T2 5 14 25 4 48 6 14 18 3 41
T3 5 15 12 2 34 8 7 18 1 34
T4 4 4 16 1 25 0 11 14 2 27
Total 21 50 68 9 148 22 51 65 10 148