Diabetes-Related Outcomes and Costs Have Mostly Improved

TOPLINE:

Over the past 20 years in Denmark, the incidence of type 2 diabetes-related outcomes and many treatment-related harms have both decreased without increased medication expenses despite an aging and more comorbid population; however, challenges remain.

METHODOLOGY:

Analysis of data from n=461,805 individuals in the Danish population with type 2 diabetes between 2002 and 2020.Multivariate analyses adjusted for potential confounders, including age, sex, and socioeconomic status.

TAKEAWAY

The population grew 2.7-fold from 2002 to 2020 (n=113,105 to 306,962), the median age increased from 66 to 68 years, and the mean number of diseases per person increased from 5.2 to 8.8, with an increase in Charlson Comorbidity Index from 1.78 to 1.93.After adjustments, mortality per 1000 person-years decreased by 28% from 2002 to 2020, with the largest risk reduction, 63%, in acute myocardial infarction.The mean number of annually redeemed medications per person increased from 8.1 to 9.0, with statin and antihypertensive use increasing to 65% and 69%, respectively.Antiplatelet medication (aspirin and clopidogrel) use peaked at 48% in 2009 and dropped to 31% in 2020.Anticoagulant (warfarin and direct-acting oral anticoagulants) use gradually increased from 5% in 2002 to 14% in 2020.For glucose-lowering treatment, there was a shift away from using sulfonylureas to metformin and other medications.Diagnoses of hypoglycemia, falls, and gastric bleeding decreased over the study period, but incidences of volume depletion, ketoacidosis, infections, and electrolyte imbalances requiring hospitalization increased.Cumulative expenses for the population increased from €132,000,000 to €327,000,000 (approximately $144,406,680 to $357,734,730), corresponding to a 148% increase over the study period.However, the average medication cost per individual was 8% less in 2020 compared with 2002 despite increasing medication use, mainly driven by reduced costs of antiplatelets, antihypertensives, and statins, among others.In contrast, expenses for glucose-lowering medications have gradually increased, with the average more than doubling (138% increase) from €220 ($240) in 2002 to €524 ($573) in 2020.

IN PRACTICE:

“Although these trends suggest improvements in rational pharmacotherapy, they cannot be solely attributed to improved pharmacotherapy and appear to be multifactorial,” the authors wrote.

“Advancements in diabetes management have improved the balance between medication benefits, harms, and costs… Remaining challenges, such as an increased risk of ketoacidosis and electrolyte imbalances as well as rising costs for glucose-lowering medications, highlight the importance of individualized treatment and continuous risk-benefits evaluations,” they added.

SOURCE:

This study was conducted by Karl Sebastian Johansson, of the Department of Clinical Pharmacology, Copenhagen University Hospital, Copenhagen, Denmark, and colleagues and was published online in Diabetes Care.

LIMITATIONS:

Analysis was confined to events diagnosed in hospital-based inpatient and outpatient settings, not primary health care. Only predefined adverse events were analyzed.

DISCLOSURES:

The study was funded by the Capital Region of Denmark. The authors reported no potential conflicts of interest relevant to this article.

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