Trends and outcomes in the use of surgery and radiation for the treatment of locally advanced esophageal cancer: A propensity score adjusted analysis of the surveillance, epidemiology, and end results registry from 1998 to 2008
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We examined outcomes and trends in surgery and radiation use for patients with locally advanced esophageal cancer, for whom optimal treatment isn't clear. Trends in surgery and radiation for patients with T1-T3N1M0 squamous cell or adenocarcinoma of the mid or distal esophagus in the Surveillance, Epidemiology, and End Results database from 1998 to 2008 were analyzed using generalized linear models including year as predictor; Surveillance, Epidemiology, and End Results doesn't record chemotherapy data. Local treatment was unimodal if patients had only surgery or radiation and bimodal if they had both. Five-year cancer-specific survival (CSS) and overall survival (OS) were analyzed using propensity-score adjusted Cox proportional-hazard models. Overall 5-year survival for the 3295 patients identified (mean age 65.1 years, standard deviation 11.0) was 18.9% (95% confidence interval: 17.3-20.7). Local treatment was bimodal for 1274 (38.7%) and unimodal for 2021 (61.3%) patients; 1325 (40.2%) had radiation alone and 696 (21.1%) underwent only surgery. The use of bimodal therapy (32.8-42.5%, P = 0.01) and radiation alone (29.3-44.5%, P < 0.001) increased significantly from 1998 to 2008. Bimodal therapy predicted improved CSS (hazard ratios [HR]: 0.68, P < 0.001) and OS (HR: 0.58, P < 0.001) compared with unimodal therapy. For the first 7 months (before survival curve crossing), CSS after radiation therapy alone was similar to surgery alone (HR: 0.86, P = 0.12) while OS was worse for surgery only (HR: 0.70, P = 0.001). However, worse CSS (HR: 1.43, P < 0.001) and OS (HR: 1.46, P < 0.001) after that initial timeframe were found for radiation therapy only. The use of radiation to treat locally advanced mid and distal esophageal cancers increased from 1998 to 2008. Survival was best when both surgery and radiation were used. © 2013 Wiley Periodicals, Inc. and the International Society for Diseases of the Esophagus.
Published Version (Please cite this version)10.1111/dote.12123
Publication InfoWorni, M; Castleberry, AW; Gloor, B; Pietrobon, R; Haney, JC; D'Amico, TA; ... Berry, MF (2014). Trends and outcomes in the use of surgery and radiation for the treatment of locally advanced esophageal cancer: A propensity score adjusted analysis of the surveillance, epidemiology, and end results registry from 1998 to 2008. Diseases of the Esophagus, 27(7). pp. 662-669. 10.1111/dote.12123. Retrieved from https://hdl.handle.net/10161/14824.
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Associate Research Professor in the Social Science Research Institute
Clinical Associate in the Department of Surgery
Assistant Professor of Surgery
Medical Instructor in the Department of Surgery
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