Trends in Peripheral Artery Disease, Lower Extremity Revascularization, and Lower Extremity Amputation in Incident Type 2 Diabetes: A Danish Population-Based Cohort Study

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Abstract

OBJECTIVE: To examine trends in peripheral artery disease (PAD), lower-extremity (LE) revascularization, and LE amputation in patients with incident type 2 diabetes.

RESEARCH DESIGN AND METHODS: This cohort study included patients in Denmark diagnosed with type 2 diabetes in 1996-2015 and followed until 2020. Patients were age and sex matched with as many as three general population individuals. Outcomes comprised 5-year cumulative incidences of first-time PAD, LE revascularization, and LE amputation. Age- and sex-adjusted hazard ratios (aHRs) were computed using Cox regression.

RESULTS: The cohort comprised 349,454 patients with incident type 2 diabetes (53% male; median age 62 years) and 1,025,054 general population individuals. Among patients with diabetes, decreases in 5-year cumulative incidence of PAD (from 6.2 to 3.4%; aHR 0.55 [95% CI 0.52-0.57]), LE revascularization (from 0.8 to 0.6%; aHR 0.80 [95% CI 0.71-0.90]), and LE amputation (from 1.0 to 0.4%; aHR 0.45 [95% CI 0.40-0.51]) occurred from 1996-2000 to 2011-2015. LE amputation decreased at all amputation levels (hip/thigh, knee/lower leg, and ankle/foot/toe) during the study period. In the general population, 5-year cumulative incidence remained stable (1.2-1.5% for PAD, ∼0.4% for LE revascularization, and ∼0.2% for LE amputation). However, the relative rates of all outcomes were two- to threefold higher in patients with diabetes than matched individuals in 2011-2015.

CONCLUSIONS: In recent decades, the cumulative incidence of LE complications substantially decreased in patients with incident type 2 diabetes while remaining stable in the general population.

OriginalsprogEngelsk
TidsskriftDiabetes Care
Vol/bind48
Nummer1
Sider (fra-til)76-83
Antal sider8
ISSN0149-5992
DOI
StatusUdgivet - jan. 2025

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