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Relationship between glycosylated hemoglobin and low ankle brachial index. A cross-sectional observational study from the Beijing Vascular Disease Evaluation Study (BEST Study)



Relationship between glycosylated hemoglobin and low ankle brachial index. A cross-sectional observational study from the Beijing Vascular Disease Evaluation Study (BEST Study)



International Angiology 2019:



Studies have confirmed that the low ankle brachial index (ABI) and high glycosylated hemoglobin (HbA1c) level were both risk factors of cardiovascular disease (CVD). However, the association has rarely been explored between ABI and HbA1c. This study was to evaluate the independent relationship between HbA1c and low ABI. A total of 3102 subjects (male 1539, female 1563, aged 67.72±10.69 years) were enrolled into the study from 2010 to 2018. The odds ratio (OR) and Linear regression coefficient of low ABI group (defined as ABI≤0.9) and ABI value in associations with the HbA1c were modelled using multivariable logistic and linear regression analyses to adjust for possible confounders. Compared with participants with normal ABI, those presenting the low ABI showed a significantly older age, smoking rate, higher level of heart rate (HR), systolic blood pressure (SBP), pulse pressure (PP), fasting glucose (FPG), triglyceride (TG), highly sensitive C-reactive protein (hs-CRP), HbA1c and carotid femoral pulse wave velocity (CF-PWV); and higher prevalence rate of hypertension, diabetes, coronary heart disease (CAD); and higher rate on medication of statins, diabetes drug and cardiovascular drug (all P<0.001). After multiple adjustment for age, sex, smoke, FPG, blood lipids, hs-CRP, SBP, diastolic blood pressure (DBP), PP, CF-PWV, hypertension, diabetes, CAD and medications, the OR of HbA1c for low ABI was with statistical significance (95% confidence interval 1.204-1.410, p<0.001). After further multivariate adjustment analysis by linear regression, with left and right ABI as dependent variables, the results showed that HbA1c was independently linearly correlated to left and right ABI (all p<0.001). HbA1c was an independent associated factor of lower ABI and linearly correlated to ABI level independent of fasting glucose and other cardiovascular factors. We should not only focus on the HbA1c in diabetes mellitus patients, but also people with lower ABI.

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PMID: 31782279


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