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Table 1 Demographic and clinical parameters of patients with metastatic colorectal cancer

From: Amphiregulin and Epiregulin mRNA expression in primary colorectal cancer and corresponding liver metastases

Characteristics Frequency %
Age   
Mean (range) 63.5 (32-91)  
Gender   
Male 70 58.3%
Female 50 41.7%
Anatomical Site   
Right colon 35 29.2%
Transverse colon 8 6.7%
Left colon 50 41.7%
Rectum 27 22.5%
Histology   
Well differentiated 89 74.2%
Moderately differentiated 27 22.5%
Poor/Mucinous 4 3.3%
Dukes Grade   
A 2 1.7%
B 34 28.3%
C 84 70.0%
Liver synchronicity   
Synchronous 100 83.3%
Metachronous 20 16.7%
Lymph node metastasis   
Positive 84 70.0%
Negative 36 30.0%
Adjuvant chemotherapy   
Received 102 85.0%
Not received 6 5.0%
Unknown 12 10%
  1. This study was approved by the ethics committee of Tokyo Women's Medical University, and was performed in accordance with the Declaration of Helsinki.