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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Surgery. 2012 Apr 11;152(2):145–151. doi: 10.1016/j.surg.2012.02.015

Table IV.

Mortality hazard ratios by stage for patients ≥45 years of age at diagnosis

Hazard ratio (vs Stage 1) 95% CI P
Stage 2 1.05 0.84–1.33 .62
Stage 3 1.74 1.47–2.07 <.001
Stages 4a/4b 3.36 2.81–4.01 <.001
Stage 4c 8.48 6.91–10.4 <.001