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The effect of alcohol intake on varicose veins (VV) has not been determined by its consumption level. The aim of this study was to investigate the association between alcohol intake and VV in an elderly general population. Using a cross‐sectional approach, the Shimane CoHRE Study data, comprising a total of 1060 participants, were analyzed. By multivariate regression analysis adjusted with basic characteristics, past work history, lifestyle‐related factors and medical history, compared with non‐drinkers, mild drinkers (<20.0 g/day) showed a significantly lower adjusted odds ratio (aOR) of VV (aOR = 0.64, P = 0.036). In a similar way, regular drinkers (1–5 days/week) showed a significantly lower aOR of VV when compared with occasional drinkers (aOR = 0.57, P = 0.032). VV and alcohol intake showed J‐curve relationships. In a stratified analysis by alcohol consumption levels, the association of smoking and VV were also observed in moderate to heavy drinkers and habitual drinkers. These findings can provide better understanding of pathophysiological mechanism and be used for evidence‐based patient education. [ABSTRACT FROM AUTHOR]

Varicose veins ( VV) in legs are commonly observed in the general global population. However, the prevalence of and risk factors for VV in Japan are not clear. This study aimed at clarifying the risk factors for VV in traditional rural areas of Shimane prefecture. Subjects (113 men and 205 women aged ≥45 years) were recruited from health examinations in those areas in 2012. VV were defined as a reflux of blood in the great and/or small saphenous vein and incompetent perforating veins detected by ultrasonography. Risk factors for VV were analyzed using logistic regression models that included various parameters. We also investigated the possible interaction between standing at work and overweight and calculated the synergistic index. VV were found in 20.1% of the subjects (12.4% of men and 24.4% of women). The previously known risk factors of prolonged upright standing posture during work, higher body mass index ( BMI), female sex, and age were also significant factors for VV. There was a significant combined effect of overweight ( BMI ≥25) and prolonged upright standing posture at work [adjusted odds ratio = 3.42; 95% confidence interval ( CI), 1.07-10.89], although the synergistic effect was not significant [synergistic index = 1.3; 95% CI, 0.2-8.7]. The prevalence of VV in the traditional rural area of Shimane prefecture was comparable to that reported previously in European countries. Our results confirm that exposure to both prolonged standing at work and overweight exacerbate VV development. This finding is useful to develop strategies for VV prevention. [ABSTRACT FROM AUTHOR]