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Table 3 Distribution of T and N status by IHC scores

From: Weak expression of cyclooxygenase-2 is associated with poorer outcome in endemic nasopharyngeal carcinoma: analysis of data from randomized trial between radiation alone versus concurrent chemo-radiation (SQNP-01)

  IHC score
T status 0 1–4 5–8 9–12
1 6 3 0 0
2 3 3 2 5
3 4 3 1 9
4 4 8 5 2
N status     
0 1 0 2 1
1 3 2 1 4
2 8 5 2 8
3 5 10 3 3
  1. Abbreviations: IHC, immunohistochemistry. Fisher's exact test showed that the distribution of IHC score among patients with different T status was significantly different (p = 0.019), while there was no difference among patients with different N status (p = 0.295).