Yuan, ChenRubinson, DouglasQian, Zhi RongWu, ChenKraft, PeterBao, YingOgino, ShujiNg, KimmieClancy, ThomasSwanson, RichardGorman, MeganBrais, LaurenLi, TingtingStampfer, MeirHu, FrankGiovannucci, EdwardKulke, MatthewFuchs, CharlesWolpin, Brian2019-09-052015Yuan, Chen, Douglas A. Rubinson, Zhi Rong Qian, Chen Wu, Peter Kraft, Ying Bao, Shuji Ogino, et al. 2015. “Survival Among Patients With Pancreatic Cancer and Long-Standing or Recent-Onset Diabetes Mellitus.” Journal of Clinical Oncology 33 (1): 29–35. https://doi.org/10.1200/jco.2014.57.5688.0732-183X1527-7755http://nrs.harvard.edu/urn-3:HUL.InstRepos:41292540Purpose: Long-standing diabetes is a risk factor for pancreatic cancer, and recent-onset diabetes in the several years before diagnosis is a consequence of subclinical pancreatic malignancy. However, the impact of diabetes on survival is largely unknown. Patients and Methods: We analyzed survival by diabetes status among 1,006 patients diagnosed from 1986 to 2010 from two prospective cohort studies: the Nurses' Health Study (NHS) and Health Professionals Follow-Up Study (HPFS). We validated our results among 386 patients diagnosed from 2004 to 2013 from a clinic-based case series at Dana-Farber Cancer Institute (DFCI). We estimated hazard ratios (HRs) for death using Cox proportional hazards models, with adjustment for age, sex, race/ethnicity, smoking, diagnosis year, and cancer stage.ResultsIn NHS and HPFS, HR for death was 1.40 (95% CI, 1.15 to 1.69) for patients with long-term diabetes (> 4 years) compared with those without diabetes (P < .001), with median survival times of 3 months for long-term diabetics and 5 months for nondiabetics. Adjustment for a propensity score to reduce confounding by comorbidities did not change the results. Among DFCI patient cases, HR for death was 1.53 (95% CI, 1.07 to 2.20) for those with long-term diabetes compared with those without diabetes (P = .02), with median survival times of 9 months for long-term diabetics and 13 months for nondiabetics. Compared with nondiabetics, survival times were shorter for long-term diabetics who used oral hypoglycemics or insulin. We observed no statistically significant association of recent-onset diabetes (< 4 years) with survival. Conclusion: Long-standing diabetes was associated with statistically significantly decreased survival among patients with pancreatic cancer enrolled onto three longitudinal studies.en-USJournal Article2019-09-0510.1200/JCO.2014.57.5688