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. Author manuscript; available in PMC: 2014 Mar 19.
Published in final edited form as: Pancreas. 2013 Mar;42(2):249–253. doi: 10.1097/MPA.0b013e31825f3af4

Table 2. Both Proportion of Patients Receiving Radiation and Surgery and Mean Survival Decreases Significantly as Age Increases.

Overall (n = 45,509) Age <50 y (n = 3710) Age 50–70 y (n = 21,446) Age >70 y (n = 20,353) P
Cancer-directed surgery, n (%) 7374 (16) 768 (21) 4046 (19) 2560 (13) <0.001
Radiation, n (%) 9842 (22) 1047 (28) 5422 (25) 3373 (17) <0.001
Mean survival, mo 8 10.4 9.1 6.4 <0.001*
*

Kaplan-Meier, P < 0.001. Cox proportional hazards model: HR, 1.131 (95% CI, 1.090–1.174; P < 0.0001; for 50–70 years vs <50 years); HR, 1.485 (95% CI, 1.430–1.542; P < 0.0001; for >70 years vs <50 years), controlling for stage, sex, race, radiation, and surgery.