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Table 2 Association between clinical parameters and expression of PD-L1, BRAF and EGFR proteins

From: Expression and clinical significance of PD-L1 and BRAF expression in nasopharyngeal carcinoma

Characteristic PD-L1 (N) BRAF V600E (N) EGFR 19Del (N)
0 1–5 5–49 > 50 P-value Negative Positive P-value Negative Positive P-value
Age
  < 60 10 11 36 12 0.127 64 5 0.411* 67 2 0.431*
  ≥ 60 7 11 37 28 75 8 82 1
Sex
 Male 14 17 53 30 0.776 104 10 0.602* 112 2 0.581*
 Female 3 5 20 10   35 3   37 1  
Stage
 I-II 7 9 36 14 0.517 60 6 0.529* 65 1 0.599*
 III-IV 10 13 37 26 79 7 84 2
Progression
 Yes 4 6 32 33 0.001 65 10 0.035* 73 2 0.490*
 No 13 16 41 7 74 3 76 1
  1. *: Fisher’s exact test
  2. Chi-squared test was used in variables without *