Treatment of pancreatic adenocarcinoma in relation to survival in the U.S. Military Health System

•Oncologic surgery improves survival in persons with pancreatic adenocarcinoma.•Surgery with adjuvant chemo lowers death risk to similar extent in early-stage.•Chemotherapy alone improves survival in late-stage pancreatic cancer.•Multi-agent chemo and > 10 administrations associated with greater survival.