Projecting the prevalence of obesity in South Korea through 2040: a microsimulation modelling approach

Objective To project the prevalence of obesity in 2040 among individuals 19 years and older in South Korea.Design, setting, and participants Using the ‘Population Health Model-body mass index’ (BMI) microsimulation model, the prevalence of obesity in Korean adults 19 years and older was projected un...

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Main Authors: Young-Eun Kim, Seok-Jun Yoon, Yoon-Sun Jung, Dun-Sol Go
Format: Article
Language:English
Published: BMJ Publishing Group 2020-12-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/10/12/e037629.full
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author Young-Eun Kim
Seok-Jun Yoon
Yoon-Sun Jung
Dun-Sol Go
author_facet Young-Eun Kim
Seok-Jun Yoon
Yoon-Sun Jung
Dun-Sol Go
author_sort Young-Eun Kim
collection DOAJ
description Objective To project the prevalence of obesity in 2040 among individuals 19 years and older in South Korea.Design, setting, and participants Using the ‘Population Health Model-body mass index’ (BMI) microsimulation model, the prevalence of obesity in Korean adults 19 years and older was projected until 2040. The model integrated individual survey data from the Korea Health Panel Survey of 2011 and 2012, population statistics based on resident registration, population projections and complete life tables categorised by sex and age. Birth rate, life expectancy and international migration were based on a medium growth scenario. The base population of Korean adults in 2012, devised through data aggregation, was 39 842 730. The prediction equations were formulated using BMI as the dependent variable; the individual’s sex, age, smoking status, physical activity and preceding year’s BMI were used as predictive factors.Outcome measure BMI categorised by sex.Results The median BMI for Korean adults in 2040 was expected to be 23.55 kg/m2 (23.97 and 23.17 kg/m2 for men and women, respectively). According to the Korean BMI classification, 70.05% of all adults were expected to be ‘preobese’ (ie, have BMIs 23–24.9 kg/m2) by 2040 (81.23% of men and 59.07% of women) and 24.88% to be ‘normal’.Conclusions We explored the possibility of applying and expanding on the concept of microsimulation in the field of healthcare by combining data sources available in Korea and found that more than half of the adults in this study population will be preobese, and the proportions of ‘obesity’ and ‘normal’ will decrease compared with those in 2012. The results of our study will aid in devising healthy strategies and spreading public awareness for preventing this condition.
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spelling doaj-art-69e6a079700d45f1a38ec637628a57362024-11-22T14:00:10ZengBMJ Publishing GroupBMJ Open2044-60552020-12-01101210.1136/bmjopen-2020-037629Projecting the prevalence of obesity in South Korea through 2040: a microsimulation modelling approachYoung-Eun Kim0Seok-Jun Yoon1Yoon-Sun Jung2Dun-Sol Go32 Department of Big Data Strategy, National Health Insurance Service, Wonju, Republic of KoreaDepartment of Preventive Medicine, Korea University College of Medicine of Seoul, Seoul, South KoreaDepartment of Public Health, Graduate School, Korea University, Seoul, Korea (the Republic of)Department of Health Care Policy Research, Korea Institute for Health and Social Affairs, Sejong, Korea (the Republic of)Objective To project the prevalence of obesity in 2040 among individuals 19 years and older in South Korea.Design, setting, and participants Using the ‘Population Health Model-body mass index’ (BMI) microsimulation model, the prevalence of obesity in Korean adults 19 years and older was projected until 2040. The model integrated individual survey data from the Korea Health Panel Survey of 2011 and 2012, population statistics based on resident registration, population projections and complete life tables categorised by sex and age. Birth rate, life expectancy and international migration were based on a medium growth scenario. The base population of Korean adults in 2012, devised through data aggregation, was 39 842 730. The prediction equations were formulated using BMI as the dependent variable; the individual’s sex, age, smoking status, physical activity and preceding year’s BMI were used as predictive factors.Outcome measure BMI categorised by sex.Results The median BMI for Korean adults in 2040 was expected to be 23.55 kg/m2 (23.97 and 23.17 kg/m2 for men and women, respectively). According to the Korean BMI classification, 70.05% of all adults were expected to be ‘preobese’ (ie, have BMIs 23–24.9 kg/m2) by 2040 (81.23% of men and 59.07% of women) and 24.88% to be ‘normal’.Conclusions We explored the possibility of applying and expanding on the concept of microsimulation in the field of healthcare by combining data sources available in Korea and found that more than half of the adults in this study population will be preobese, and the proportions of ‘obesity’ and ‘normal’ will decrease compared with those in 2012. The results of our study will aid in devising healthy strategies and spreading public awareness for preventing this condition.https://bmjopen.bmj.com/content/10/12/e037629.full
spellingShingle Young-Eun Kim
Seok-Jun Yoon
Yoon-Sun Jung
Dun-Sol Go
Projecting the prevalence of obesity in South Korea through 2040: a microsimulation modelling approach
BMJ Open
title Projecting the prevalence of obesity in South Korea through 2040: a microsimulation modelling approach
title_full Projecting the prevalence of obesity in South Korea through 2040: a microsimulation modelling approach
title_fullStr Projecting the prevalence of obesity in South Korea through 2040: a microsimulation modelling approach
title_full_unstemmed Projecting the prevalence of obesity in South Korea through 2040: a microsimulation modelling approach
title_short Projecting the prevalence of obesity in South Korea through 2040: a microsimulation modelling approach
title_sort projecting the prevalence of obesity in south korea through 2040 a microsimulation modelling approach
url https://bmjopen.bmj.com/content/10/12/e037629.full
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