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Risk of Major Adverse Cardiovascular Events, Severe Hypoglycemia, and All-Cause Mortality in Postpancreatitis Diabetes Mellitus Versus Type 2 Diabetes: A Nationwide Population-Based Cohort Study

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posted on 21.03.2022, 21:46 authored by Søren S. Olesen, Rikke Viggers, Asbjørn M. Drewes, Peter Vestergaard, Morten H. Jensen
Objective: Post-pancreatitis diabetes mellitus (PPDM) is a frequent complication of pancreatitis and associates with poor glycemic control. We investigated the risk of adverse diabetes related outcomes in PPDM compared to type 2 diabetes.

Materials and Methods: In this Danish population-based cohort study, we included adults (>18 years) with incident PPDM or type 2 diabetes between 1998 and 2018 through national health registries. PPDM was further divided into acute/chronic subtypes (PPDM-A and PPDM-C). We ascertained risk of major adverse cardiovascular events (MACE), severe hypoglycemia, and all-cause mortality as well as incidence rates of severe hypoglycemia. We compared risk and incidence rates across diabetes subgroups using multivariate Cox- and Poisson regression analyses.

Results: We identified 383,325 people with incident type 2 diabetes, 3,418 with PPDM-A and 2,461 with PPDM-C. Compared to type 2 diabetes, PPDM-C was associated with increased risks of severe hypoglycemia (HR 5.27; 95% CI 4.62–6.00, P<0.001) and all-cause mortality (HR 1.54; 95% CI 1.45–1.64, P<0.001). Similar patterns were observed for people with PPDM-A. Incidence rate ratios (IRRs) for severe hypoglycemia were increased in both PPDM-C (IRR 7.38; 95% CI 6.75–8.08, P<0.001) and PPDM-A (IRR 3.76; 95% CI 3.36–4.21, P<0.001) compared to type 2 diabetes. Findings were consistent in an analysis restricted to people on insulin and in an analysis including pancreatitis patients without diabetes as comparator group.

Conclusions: Compared to type 2 diabetes, PPDM is associated with excess risk of adverse diabetes related outcomes. This has important implications for management.

Funding

The study was not funded.

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