Abstract

AimsData on the long-term consequences of diabetic foot disease (DFD) are scarce. We examined the association between DFD and major clinical outcomes in patients with diabetes in the general population. MethodsWe conducted a prospective cohort analysis of 1,428 participants with diabetes in the Atherosclerosis Risk in Communities Study. DFD and four clinical outcomes (nontraumatic lower-extremity amputation, cardiovascular disease, major fall, and death) were captured through 2018 using administrative data. We used Cox regression models to evaluate the association between incident DFD (modeled as a time-varying exposure) and the subsequent risk of clinical outcomes. ResultsDuring over two decades of follow-up (1996–1998 to 2018), the cumulative incidence of DFD was 33.3%. Risk factors for DFD included older age, poor glycemic control, long diabetes duration, and prevalent vascular disease (chronic kidney disease, retinopathy, cardiovascular disease). Following incident DFD, the five-year cumulative incidence of major clinical outcomes was 38.9% for mortality, 25.2% for cardiovascular disease, 14.5% for nontraumatic lower-extremity amputation, and 13.2% for major fall. DFD remained associated with all four clinical outcomes after multivariable adjustment, with hazard ratios ranging from 1.5 (cardiovascular disease) to 34.7 (lower-extremity amputation). ConclusionsDFD is common and confers substantial risk for major morbidity and mortality.

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