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Trends in the Incidence of Hospitalization for Major Diabetes-Related Complications in People With Type 1 and Type 2 Diabetes in Australia, 2010–2019

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posted on 27.01.2022, 21:08 by Jedidiah I Morton, Peter A Lazzarini, Jonathan E Shaw, Dianna J Magliano
Objective: To determine trends in the incidence of major diabetes-related complications in Australia.

Research Design and Methods: This study included 70,885 people with type 1 and 1,089,270 people with type 2 diabetes registered on the Australian diabetes registry followed from July 2010 to June 2019. Outcomes (hospitalization for myocardial infarction [MI], stroke, heart failure [HF], lower-extremity amputation [LEA], hypoglycemia, and hyperglycemia) were obtained via linkage to hospital admissions databases. Trends over time in the age-adjusted incidence of hospitalizations were analyzed using Joinpoint regression and summarized as annual percent changes (APCs).

Results: In type 1 diabetes, the incidence of all complications remained stable, except for stroke, which increased from 2010-2011 to 2018-2019 (financial years; APC: +2.5% [95% CI: 0.1, 4.8]), and hyperglycemia, which increased from 2010-2011 to 2016-2017 (APC: +2.7% [1.0, 4.5]). In type 2 diabetes, the incidence of stroke remained stable, while the incidence of MI decreased from 2012-2013 to 2018-2019 (APC: -1.7% [-2.8, -0.5]), as did the incidence of HF and hypoglycemia from 2010-2011 to 2018-2019 (APCs: -0.8% [-1.5, 0.0] and -5.3% [-6.7, -3.9], respectively); the incidence of LEA and hyperglycemia increased (APCs: +3.1% [1.9, 4.4], and +7.4% [5.9, 9.0]). Most trends were consistent by sex, but differed by age; in type 2 diabetes most improvements were confined to individuals aged ≥60 years.

Conclusions: Trends in admissions for diabetes-related complications were largely stable in type 1 diabetes. In type 2 diabetes, hospitalization rates for MI, HF, and hypoglycemia fell over time, while increasing for LEA and hyperglycemia.


J.I.M is supported by an Australian Government Research Training Program (RTP) Scholarship and Monash Graduate Excellence Scholarship. PAL is supported by a National Health and Medical Research Council Early Career Fellowship. DJM is supported by a National Health and Medical Research Council Senior Research Fellowship. JES is supported by a National Health and Medical Research Council Investigator Grant. This work is partially supported by the Victorian Government’s Operational Infrastructure Support Program.