Retrospective Cohort Study
Copyright ©The Author(s) 2025.
World J Gastrointest Surg. Apr 27, 2025; 17(4): 100851
Published online Apr 27, 2025. doi: 10.4240/wjgs.v17.i4.100851
Table 3 Variable assignments
Independent variable
Assignment
The primary location of the tumor“rectum” = 1, “colon” = 0
Lymph node involvement“yes” = 1, “no” = 0
Pulmonary metastasis“yes” = 1, “no” = 0
Postoperative chemotherapy“yes” = 1, “no” = 0