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. Author manuscript; available in PMC: 2014 Jun 10.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2010 Jul 17;80(5):1391–1397. doi: 10.1016/j.ijrobp.2010.04.003

Fig 1.

Fig 1

Kaplan-Meier curve of survival based on age group. Among nonelderly patients (aged <75 years), compared with patients who received surgery only, those who received adjuvant therapy had improved survival (p < 0.001). Among elderly patients (aged ≥75 years), survival during follow-up after PD was not statistically significantly different between those who did and did not receive adjuvant chemoradiation therapy (CRT; p = 0.273). However, survival censored at 2 years was significant among both nonelderly (p < 0.001) and elderly patients (p = 0.013).