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Table 3 Clinicopathological variables and their correlation with immunohistochemical expression of EGFR in primary tumours

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

Clinicopathological variables CRC patients with ovarian metastasis CRC patients with non-ovarian metastasis
Total Positive [n (%)] P′ Total Positive [n (%)] P
Total 22 14 (63.6)   24 14 (58.3)  
Age
  ≤ 55 15 9 (60) 1.000 6 3 (50.0) 0.665
  > 55 7 5 (71.4)   18 11 (61.1)  
Primary tumour location
 Colon 17 10 (58.8) 0.613 14 8 (57.1) 1.000
 Rectum 5 4 (80.0)   10 6 (60.0)  
Differentiation
 High 2 1 (50.0) 1.000 1 0 (0.0) 0.417
 Mid-Low 19 12 (63.2)   23 14 (60.9)  
 unknown 1 1 (100)     
Positive lymph node
 0 5 4 (80.0) 0.716 6 1 (16.7) 0.101
 1~3 6 3 (50.0)   10 7 (70.0)  
  ≥ 4 9 6 (66.7)   8 6 (75.0)  
 unknown 2 1 (50.0)   
Tumour diameters
  ≤ 5 cm 11 8 (72.7) 0.642 16 9 (56.3) 1.000
  > 5 cm 9 6 (66.7)   8 5 (62.5)  
 unknown 2 1 (50)   
Vascular cancer embolus
 Yes 9 5 (55.6) 0.662 10 6 (60.0) 1.000
 No 13 9 (69.2)   11 7 (63.6)  
 unknown 0 0 (0.0)   3 1 (33.3)