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Objective  To investigate the prevalence of diabetic at‐risk foot and its associated factors.    Methods  A total of 838 hospitalized patients with type 2 diabetes were screened for at‐risk foot. Neural and vascular disorders were evaluated by assessing vibration perception thresholds and ankle brachial indexes (ABIs). After excluding 12 patients with abnormally high ABIs, remaining individuals with neural and/or vascular disorder were identified as at‐risk patients and further classified into three subtypes: isolated neural disorder, isolated vascular disorder and mixed disorder. Potential associated factors were examined using Logistic regression models.    Results  In the final sample of 826 individuals, the prevalence of diabetic at‐risk foot was 30.6%. Among all at‐risk patients, isolated neural disorders (69.6%) were more common than mixed (16.2%) or isolated vascular disorders (14.2%). Isolated neural and vascular disorders shared specific risk factors, including age per 20‐year increment (odds ratio [95%  CI ], 3.73 [2.59–5.37] and 4.01 [1.98–8.11]), diabetic duration ≥10 years (1.69 [1.13–2.54] and 3.29 [1.49–7.24]) and systolic blood pressure ≥140 mmHg (1.96 [1.31–2.93] and 2.90 [1.38–6.10]) respectively. In addition, isolated neural disorders were associated with a heavy smoking history (95% CI  2.69 [1.15–6.31]), increased high‐sensitivity C‐reactive protein levels (95% CI  1.30 [1.04–1.62]) and mild obesity (95% CI  0.49 [0.20–1.24]). Isolated vascular disorders were linked with decreased high density lipoprotein (HDL) cholesterol levels (95% CI  3.42 [1.31–8.96]) and increased triglycerides levels (95% CI  2.74 [1.26–5.97]).    Conclusions  Diabetic at‐risk foot is epidemic among hospitalized patients with type 2 diabetes. Aging, long‐term diabetes, hypertension, smoking, inflammatory response and dyslipidemia may be associated with the prevalence of diabetic at‐risk foot.

Identifying at‐risk foot among hospitalized patients with type 2 diabetes: A cross‐sectional study in one Chinese tertiary hospital