525 / 1084
Analysis of two large cancer registries
2 databases:
• Surveillance, Epidemiology End Results (SEER)-Medicare
• Texas Cancer Registry-Medicare
2553 patients aged>65 years with nonmetastatic EC
• diagnosed between 2002 and 2009 and were
• treated with either 3D (2240 patients) or IMRT (313 patients)
Lin, S.H.; Zhang, N.; Godby, J.; Wang, J.; Marsh, G.D.; Liao, Z.; Komaki, R.; Ho, L.; Hofstetter, W.L.;
Swisher, S.G.; et al. Radiation modality use and cardiopulmonary mortality risk in elderly patients with
esophageal cancer. Cancer
2016
, 122, 917–928.