Is cognitive functioning more likely to be impaired in people with diabetic foot complications?

Cognitive functioning among patient… [J Diabetes Complications. 2014] – PubMed – NCBI:

J Diabetes Complications. 2014 Jul 15. pii: S1056-8727(14)00205-0. doi: 10.1016/j.jdiacomp.2014.07.005. [Epub ahead of print]

Cognitive functioning among patients with diabetic foot.



Using diabetic foot (DF) as an indicator of severe diabetes, we aimed to investigate the cognitive profile of DF patients and the relations between cognitive functioning and both diabetes complications and comorbidities.


Dementia-free patients with DF aged 30-90 (n=153) were assessed through medical records and a cognitive battery. Information on diabetes complications and comorbidities was collected via interview; glycated hemoglobin (HbA1c) was tested. Data were analyzed using robust logistic or quantile regression adjusted for potential confounders.


The mean Mini-Mental Examination (MMSE) score of patients was 24.6 (SD=3.6), and 40% had global cognitive dysfunction (MMSE ≤24). Among elderly patients (aged ≥65), MMSE impairment was related to amputation (OR 3.59, 95% CI 1.07-12.11). Episodic memory impairment was associated with foot amputation (OR 4.13, 95% CI 1.11-15.28) and microvascular complications (OR 9.68, 95% CI 1.67-56.06). Further, elderly patients with HbA1c <7% had increased odds of psychomotor slowness (OR 7.75, 95% CI 1.55-38.73) and abstract reasoning impairment (OR 4.49, 95% CI: 1.15-17.46). However, such significant associations were not shown in adult patients aged <65.


Amputation, microvascular diseases and glycemic control were associated with impaired global cognitive function and its domains among patients aged ≥65.
Copyright © 2014 Elsevier Inc. All rights reserved.


Cognition; Diabetes; Diabetes complication; Diabetic foot; HbA1c

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