Abstract
Examining the socioeconomic vulnerability–obesity relationship is a different approach than comparing obesity rates according to the socioeconomic level. This study explored the socioeconomic vulnerability–obesity relationship among Korean adults. This secondary analysis used data from the Korea National Health and Nutrition Examination Survey, which were collected nationwide from participants aged 30–64 years. Seven socioeconomic indicators (education level, residential area, personal income level, household income level, food insecurity, house ownership, and national basic livelihood security beneficiary status) were used to create the socioeconomic vulnerability index. The prevalence of obesity was higher in the lowest socioeconomic vulnerability index quartile than in the highest socioeconomic vulnerability index quartile (odds ratio = 1.31; 95% confidence interval = 1.13–1.52) after adjusting for gender. When developing future interventions for the prevention and management of obesity, health care providers and researchers need to consider the differences in socioeconomic vulnerability index in adults.
Highlights
Examining the socioeconomic vulnerability–obesity relationship is a different approach than comparing obesity rates according to the socioeconomic level
This study identified the obesity rate according to demographic characteristics and socioeconomic status, in addition to the socioeconomic vulnerability index (SeVI)–obesity relationship among Korean adults
Among the seven indicators included in SeVI, the low education level, rural residence, and low personal income level were associated with obesity
Summary
Examining the socioeconomic vulnerability–obesity relationship is a different approach than comparing obesity rates according to the socioeconomic level. This study explored the socioeconomic vulnerability–obesity relationship among Korean adults This secondary analysis used data from the Korea National Health and Nutrition Examination Survey, which were collected nationwide from participants aged 30–64 years. In high-income countries, such as the United States, the obesity rate is high in the vulnerable population, whereas in low-income countries, the obesity rate is higher in people with a high socioeconomic level [2]. A comparison of poor lifestyle habits, such as smoking, drinking problems, and a lack of physical activity, among people with different socioeconomic positions revealed inequality by income or education level using data from the 2013–2015 Korean National Health and Nutrition Examination Survey (KNHANES). A study that analyzed data from the first (1998), fourth (2007–2009), and sixth (2013–2015) KNHANES in South Korea reported that the obesity rate is high in the low-household income group [9].
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