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Article Abstract
Aims: In 2022, the Centers for Medicare & Medicaid Services released proposed changes to Medicare's continuous glucose monitoring (CGM) coverage policy, making individuals with a history of problematic hypoglycaemia eligible for CGM coverage, irrespective of insulin use. This study estimated the burden of hypoglycaemia in Medicare Advantage beneficiaries with noninsulin-treated type 2 diabetes (T2D).
Materials And Methods: We retrospectively analysed US healthcare claims data using Optum's deidentified Clinformatics® database. Noninsulin-treated beneficiaries were identified in the 16 years from January 2007 to March 2023. Hypoglycaemia-related encounters (HREs) were those accompanied by a hypoglycaemia-specific ICD-9/10 diagnosis code in any position on the claim or the first or second position. HREs following the first claim related to T2D were reported by setting (ambulatory or inpatient/emergency department [ED]).
Results: HREs were identified in 689,853 (21.4%) of 3,229,695 noninsulin-treated Medicare Advantage beneficiaries, of whom 82.9% (n = 571,581) had ≥1 HRE in an ambulatory location and 26.8% (n = 184,833) in an ED/inpatient location. Use of sulfonylurea (odds ratio [OR]: 4.33 confidence interval [CI: 4.27-4.38]), evidence of end-stage kidney disease (OR: 2.87 [CI: 2.79-2.94]), hypertension (OR: 3.09 [CI: 3.04-3.15]) and retinopathy (OR: 2.94 [CI: 2.82-3.07]) were the strongest predictors of an HRE (p < 0.001).
Conclusions: These findings show that HREs are prevalent in noninsulin-treated diabetes and identify a large number of patients who may benefit from CGM. Because >80% of HREs occur in the ambulatory setting and >70% occur in patients not taking sulfonylureas, primary care providers should be aware of the latest eligibility criteria for Medicare's coverage of CGM and not restrict this technology to their sulfonylurea-treated patients.
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