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Table 2 Distribution of patients with different IHC score by treatment

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

CRT

RT

Negligible (0)

8

9

Weak (1–4)

10

7

Moderate (5–8)

4

4

Strong (9–12)

9

7

  1. Abbreviations: IHC, immunohistochemistry; RT, radiation; CRT, chemoradiation.
  2. Fisher's exact test showed no significant difference of IHC expression levels between patients who received RT versus CRT levels (p = 0.933).