Background and Objectives: Medium- and long-term survival is low in esophageal cancer (EC) patients, which is thought to be due to tumor characteristics. Our aim was to determine both tumor- and non-tumor-related characteristics affecting survival in these patients. Methods: Patients with primary EC between 1990 and 2008 in the southern part of the Netherlands were identified. Multivariable logistic regression was used to identify determinants of survival. Results: In total, 703 patients with EC were included for the 1-year, 551 for the 3-year and 436 for the 5-year survival analysis. Poor 1-year survival was independently associated with chemoradiation (compared to surgery), positive lymph nodes (N1-stage) and 1 or ≥2 comorbidities. Adenocarcinoma (EAC) compared to squamous cell carcinoma was significantly associated with a better 1-year survival. Poor 3- and 5-year survival was associated with N1-stage and chemoradiation. Positive prognostic factors for 3- and 5-year survival were neoadjuvant therapy and female gender. Conclusion: Both tumor-related (negative lymph nodes and EAC histology) and non-tumor-related factors (surgery, neoadjuvant therapy, and female gender) are associated with a better survival of EC. Although it is not clear how histology and gender affect EC survival, knowledge of these factors may be relevant for clinical decision making.

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Keywords Adenocarcinoma, Esophageal cancer, Female gender, Patient characteristics, Survival, Tumor characteristics
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Journal Journal of Surgical Oncology
Bus, P, Lemmens, V.E.P.P, van Oijen, M.G.H, Creemers, G.J.M, Nieuwenhuijzen, G.A.P, van Baal, J.W.P.M, & Siersema, P.D. (2013). Prognostic factors for medium- and long-term survival of esophageal cancer patients in the Netherlands. Journal of Surgical Oncology. doi:10.1002/jso.23513