Endocrinol Metab.  2022 Oct;37(5):770-780. 10.3803/EnM.2022.1519.

Association among Current Smoking, Alcohol Consumption, Regular Exercise, and Lower Extremity Amputation in Patients with Diabetic Foot: Nationwide Population-Based Study

• Lee YJ
• Han KD
• Kim JH

• KMID: 2534629
• DOI: http://doi.org/10.3803/EnM.2022.1519

Abstract

Background
The present study investigates whether modifiable behavioral factors of current cigarette smoking, heavy alcohol consumption, and regular exercise are associated with risk of lower extremity amputation (LEA) in diabetic patients.
Methods
A total of 2,644,440 diabetic patients (aged ≥20 years) was analyzed using the database of the Korean National Health Insurance Service. Cox proportional hazard regression was used to assess adjusted hazard ratios (HRs) for the behavioral factors with risk of LEA under adjustment for potential confounders.
Results
The risk of LEA was significantly increased by current cigarette smoking and heavy alcohol consumption (HR, 1.436; 95% confidence interval [CI], 1.367 to 1.508 and HR, 1.082; 95% CI, 1.011 to 1.158) but significantly decreased with regular exercise (HR, 0.745; 95% CI, 0.706 to 0.786) after adjusting for age, sex, smoking, alcohol consumption, exercise, low income, hypertension, dyslipidemia, body mass index, using insulin or oral antidiabetic drugs, and diabetic duration. A synergistically increased risk of LEA was observed with larger number of risky behaviors.
Conclusion
Modification of behaviors of current smoking, heavy alcohol intake, and exercise prevents LEA and can improve physical, emotional, and social quality of life in diabetic patients.

Keyword

Smoking; Alcohol drinking; Exercise habits; Diabetic foot; Amputation risk assessment

Figure

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  Fig. 1. Flowchart showing the enrollment process for the study cohort. NHIS, National Health Insurance Service.

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  Fig. 2. Kaplan-Meier curves for cumulative incidence of lower extremity amputation in a diabetic population at biennial intervals. (A) Depending on current cigarette smoking. (B) Depending on heavy alcohol consumption. (C) Depending on regular exercise.

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