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• W4239969231 abstract "189 Background: The optimal treatment and outcome for elderly patients (pts) with localized gastroesophageal (GE) cancer remains unclear as they are underrepresented in clinical trials. We aimed to assess survival in pts ≥ 75 years according to treatment received. Methods: A retrospective analysis was performed for all pts aged ≥ 75 years with GE cancer treated in 2012 and 2013. Frailty was measured using the Charlson comorbidity index (CCI) and ECOG performance status (PS). Overall survival (OS) and disease-free survival (DFS) were assessed via uni- and multivariable Cox proportional hazards regression, adjusting for demographics. Logistic regression analyses were used to examine factors impacting treatment choices. Results: Of 70 pts, median age was 82 years (range: 75-98), primary sites were esophageal (40%, with 61% squamous histology), GE junction (24%) and gastric (36%). Baseline characteristics included: PS: 0 (40%), 1 (39%), 2 (14%), 3 (7%); and CCI: 0 (36%), 1 (20%), 2 (21%), ≥ 3 (23%). Treatment received included surgery (33%), radiotherapy (RT) (31%); surgery plus adjuvant chemotherapy (chemo) and/or RT (9%); chemoradiation alone (7%) and 20% had no active treatment. In univariable analysis; age < 85 (p = 0.007) and surgery (p = 0.022) were associated with improved OS. Chemo and RT, either alone or in combination, did not significantly improve OS. In multivariable analysis; age < 85 (HR 0.46, 95% CI: 0.23-0.94, p = 0.034), surgery (HR 0.32, 95% CI: 0.14-0.74, p = 0.008) and CCI < 2 (HR 0.52, 95% CI: 0.27-0.99, p = 0.048) were identified as independent predictors for improved OS. Age ≥ 85 was significantly associated with omission of surgery (OR 3.61, 95% CI: 1.13-14.01, p = 0.041) but in contrast, PS ≥ 2 (p = 0.475) and CCI ≥ 2 (p = 0.939) were not predictive. Conclusions: At our institution, very few pts ≥ 75 years received multimodality therapy for localized GE cancers. Surgery was the only treatment modality associated with a significant survival advantage, and additional chemo and/or RT did not further improve OS. The only predictor for having surgery was age. Consequently, future studies should consider comprehensive assessment for surgery so that eligible elderly pts can benefit." @default.
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• W4239969231 date "2017-02-01" @default.
• W4239969231 modified "2023-10-18" @default.
• W4239969231 title "Outcomes for patients ≥75 years with localized gastroesophageal cancer: Experience from the Princess Margaret Cancer Centre." @default.
• W4239969231 doi "https://doi.org/10.1200/jco.2017.35.4_suppl.189" @default.
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