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. 2015 Mar;56(2):418-25.
doi: 10.3349/ymj.2015.56.2.418.

Exploring the non-linear relationship between alcohol consumption and depression in an elderly population in Gangneung: the Gangneung Health Study

Sang-A Kim  1 , Eunyoung Kim  2 , Robert G Morris  3 , Woong-Sub Park  4
Affiliations

Exploring the non-linear relationship between alcohol consumption and depression in an elderly population in Gangneung: the Gangneung Health Study

Sang-A Kim et al. Yonsei Med J. 2015 Mar.

Abstract

Purpose: The purpose of this study was to examine a J-shaped relationship between alcohol consumption and depression among the elderly in South Korea.

Materials and methods: Cross-section data were drawn from a community-based sample of individuals 60 years of age and older (n=1819). Respondents completed the Alcohol Use Disorders Intensification Test (AUDIT) and the Korean Beck Depression Inventory. Using a regression approach, the effect of alcohol consumption as a non-linear effect was assessed in relation to gender, marital status, exercise, smoking, age, education, and physical and mental health.

Results: AUDIT total score were found to exert linear and quadratic effects that were significantly associated with higher depression scores among sample respondents. The results lend support to a J-shaped relationship between alcohol use and depression, wherein abstainers and problem drinkers were at a higher risk of depression.

Conclusion: This study confirms a J-shaped (i.e., curvilinear) relationship between alcohol consumption and depression among elderly South Koreans, similar to that frequently found in studies of Western-based samples. The findings of this study, therefore, imply the applicability of the J-shaped relationship hypothesis for non-Western society samples and within different cultural contexts.

Keywords: AUDIT; BDI; Depression; South Korean elderly population in Gangneung city; a J-shaped relationship; alcohol consumption.

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Conflict of interest statement

The authors have no financial conflicts of interest.

Figures

Fig. 1
Fig. 1
Curvilinear relationship between depression and alcohol consumption after controlling for other variables (n=1819). AUDIT, Alcohol Use Disorders Identification Test; BDI, Beck Depression Inventory.
See this image and copyright information in PMC

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