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Table 1 A list of collected demographic and pathological data at enrollment

From: Study protocol of the B-CAST study: a multicenter, prospective cohort study investigating the tumor biomarkers in adjuvant chemotherapy for stage III colon cancer

Items Category
At tentative enrollment:  
   - Age at surgery  
   - Gender Male, Female
   - Date of surgery  
   - Tumor location C, A, T, D, S, RS
   - Scope of LN dissection* D3, D2, D1, D0
   - Surgical approach Open surgery, Laparoscopic surgery
   - Interval between bowel resection and storage at freezer <1 hour, 1–3 hours, > 3 hours
At final enrollment:  
   - Histological type* pap, tub1, tub2, por1/por2, muc, sig
   - Depth of tumor invasion T1, T2, T3, T4a, T4b
   - Lymphatic invasion* ly0, ly1, ly2, ly3
   - Venous invasion* v0, v1, v2, v3
   - No. of LN examined  
   - No. of metastatic LN  
   - Degree of LN metastasis* N1, N2, N3
  1. *: Japanese Classification of Colorectal Carcinoma, Second English Edition [ref no. [19].
  2. LN: lymph node.