Retrospective Study
Copyright ©The Author(s) 2019.
World J Gastrointest Oncol. Jan 15, 2019; 11(1): 17-27
Published online Jan 15, 2019. doi: 10.4251/wjgo.v11.i1.17
Figure 1
Figure 1 Flowchart of patient inclusion.
Figure 2
Figure 2 Prognostic impact of serum tumor markers. A: Overall and disease-free survival curves according to preoperative carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9) levels; B: Overall and disease-free survival curves according to postoperative CEA and CA19-9 levels. CEA: Carcinoembryonic antigen; CA19-9: Carbohydrate antigen 19-9.
Figure 3
Figure 3 Evaluation of serum tumor markers before and after surgery. A: Disease-free survival curves according to perioperative changes in carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9) levels; B: Effects of postoperative adjuvant chemotherapy on the prognostic impact of the perioperative levels of CEA and CA19-9. CEA: Carcinoembryonic antigen; CA19-9: Carbohydrate antigen 19-9.
Figure 4
Figure 4 Prevalence of the site of initial recurrences. A: According to preoperative levels. B: According to postoperative levels. *Statistically significant (P < 0.05). CEA: Carcinoembryonic antigen; CA19-9: Carbohydrate antigen 19-9.