RESUMO
UNLABELLED:   Background/Aim. Foot ulceration is one of the most important diabetic complications that results in major medical, social, and economic consequences for patients, their families, and society as a whole. Previous studies have shown increased mortality in patients with diabetes with foot ulcers; however, the reason for the high mortality in this group of patients is not known. The aim of this cross-sectional study was to investigate prevalence rates of comorbid conditions in patients with diabetes and foot ulcers. METHODS: A total of 742 patients with type 2 diabetes (234 with foot ulcers and 508 without ulcers), consecutively attending the outpatient diabetes and diabetic foot clinics of the authors' hospital were reviewed. Clinical examination was performed to classify ulcers as neuropathic or neuroischemic, microvascular and macrovascular complications, as well as laboratory tests that were reviewed from medical records. RESULTS: Patients with diabetes with and without foot ulcers did not differ significantly in terms of age, sex, smoking habits, glycemic control, and prevalence rates of hypertension, dyslipidemia, and cerebrovascular disease. Known duration of diabetes was longer (P < 0.001), while the values of body mass index (P = 0.03) and creatinine clearance (P = 0.003) were lower in the patients with foot ulcers than in those without ulcers. In addition, prevalence rates of coronary artery disease (P = 0.005), lower extremity arterial disease (P < 0.001), retinopathy (P < 0.001), and nephropathy (P = 0.04), were higher in the patients with foot ulcers compared to those without ulcers. Additionally, duration of diabetes was longer and the prevalence rates of microvascular and macrovascular complications as well as hypertension, dyslipidemia, and smoking were much higher in the patients with neuroischemic ulcers in comparison to those with neuropathic ulcers. CONCLUSION: The high mortality rates in patients with diabetes and foot ulcers may be due to the high prevalence rates of comorbid conditions, especially coronary artery disease and nephropathy.