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Table 4 Clinicopathological variables and their correlation with immunohistochemical expression of HER2 and EGFR in ovarian metastases

From: Clinical significance of HER2 and EGFR expression in colorectal cancer patients with ovarian metastasis

Clinical Variables HER2 Expression EGFR Expression
Total Negative Positive P-value Total Negative Positive P-value
Total 29 16 13 29 9 20
Age
  ≤ 55 19 10 9 1.000 19 6 13 1.000
  > 55 10 6 4 10 3 7
Ovarian metastasis
 Synchronous 13 5 8 0.144 13 4 9 1.000
 Metachronous 16 11 5 16 5 11
Peritoneal metastasis
 With 15 13 2 0.001 15 4 11 0.700
 Without 14 3 11 14 5 9
Primary site
 Colon 20 11 9 1.000 20 6 14 1.000
 Rectum 9 5 4 9 3 6
Unilateral / bilateral ovarian metastasis
 Unilateral 10 1 9 0.001 10 4 6 0.675
 Bilateral 19 15 4 19 5 14