Trends in prevalence of overweight and obesity in Korean adults, 1998-2009: The Korean national health and nutrition examination survey

Hee Taik Kang, Jae Yong Shim, Hye Ree Lee, Byoung Jin Park, John A. Linton, Yong Jae Lee

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Abstract

Background: Although obesity is increasing worldwide and becoming a major public health problem, some countries report a trend toward stabilization. We investigated prevalence trends in overweight/obesity and obesity among Korean adults during a 12-year period. Methods: This study was based on the Korean National Health and Nutrition Examination Survey (KNHANES) I (1998), II (2001), III (2005), and IV (2007-2009). The χ2 and ANOVA tests were used to compare the prevalence and mean values for age and BMI, respectively. P-values for trends were determined by linear and logistic regression analyses, with KNHANES phase as the continuous variable. Results: The prevalences of overweight/obesity in KNHANES I through IV were 50.8%, 57.4%, 62.5%, and 62.6%, respectively, among men (P for trend = 0.002, ß = 0.021) and 47.3%, 51.9%, 50.0%, and 48.9% among women (P for trend = 0.017, ß = -0.015). The respective prevalences of obesity were 26.0%, 32.4%, 35.1%, and 36.3% among men (P for trend = 0.006, ß = 0.018) and 26.5%, 29.3%, 28.0%, and 27.6% among women (P for trend = 0.143, ß = -0.008). During the same period, the respective prevalences of grade 2 obesity (BMI ≥30 kg/m2) were 1.7%, 2.8%, 3.6%, and 3.8% among men (P for trend = 0.075, ß = 0.005) and 3.0%, 3.5%, 3.4%, and 4.0% among women (P for trend = 0.398, ß = 0.003). Conclusions: The prevalences of overweight/obesity and obesity showed an upward trend among men during the 12-year period, whereas the prevalence of overweight/obesity slightly decreased among women from 2001.

Original languageEnglish
Pages (from-to)109-116
Number of pages8
JournalJournal of Epidemiology
Volume24
Issue number2
DOIs
Publication statusPublished - 2014

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Nutrition Surveys
Obesity
Linear Models
Analysis of Variance
Public Health
Logistic Models
Regression Analysis

All Science Journal Classification (ASJC) codes

  • Epidemiology

Cite this

Kang, Hee Taik ; Shim, Jae Yong ; Lee, Hye Ree ; Park, Byoung Jin ; Linton, John A. ; Lee, Yong Jae. / Trends in prevalence of overweight and obesity in Korean adults, 1998-2009 : The Korean national health and nutrition examination survey. In: Journal of Epidemiology. 2014 ; Vol. 24, No. 2. pp. 109-116.
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title = "Trends in prevalence of overweight and obesity in Korean adults, 1998-2009: The Korean national health and nutrition examination survey",
abstract = "Background: Although obesity is increasing worldwide and becoming a major public health problem, some countries report a trend toward stabilization. We investigated prevalence trends in overweight/obesity and obesity among Korean adults during a 12-year period. Methods: This study was based on the Korean National Health and Nutrition Examination Survey (KNHANES) I (1998), II (2001), III (2005), and IV (2007-2009). The χ2 and ANOVA tests were used to compare the prevalence and mean values for age and BMI, respectively. P-values for trends were determined by linear and logistic regression analyses, with KNHANES phase as the continuous variable. Results: The prevalences of overweight/obesity in KNHANES I through IV were 50.8{\%}, 57.4{\%}, 62.5{\%}, and 62.6{\%}, respectively, among men (P for trend = 0.002, {\ss} = 0.021) and 47.3{\%}, 51.9{\%}, 50.0{\%}, and 48.9{\%} among women (P for trend = 0.017, {\ss} = -0.015). The respective prevalences of obesity were 26.0{\%}, 32.4{\%}, 35.1{\%}, and 36.3{\%} among men (P for trend = 0.006, {\ss} = 0.018) and 26.5{\%}, 29.3{\%}, 28.0{\%}, and 27.6{\%} among women (P for trend = 0.143, {\ss} = -0.008). During the same period, the respective prevalences of grade 2 obesity (BMI ≥30 kg/m2) were 1.7{\%}, 2.8{\%}, 3.6{\%}, and 3.8{\%} among men (P for trend = 0.075, {\ss} = 0.005) and 3.0{\%}, 3.5{\%}, 3.4{\%}, and 4.0{\%} among women (P for trend = 0.398, {\ss} = 0.003). Conclusions: The prevalences of overweight/obesity and obesity showed an upward trend among men during the 12-year period, whereas the prevalence of overweight/obesity slightly decreased among women from 2001.",
author = "Kang, {Hee Taik} and Shim, {Jae Yong} and Lee, {Hye Ree} and Park, {Byoung Jin} and Linton, {John A.} and Lee, {Yong Jae}",
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Trends in prevalence of overweight and obesity in Korean adults, 1998-2009 : The Korean national health and nutrition examination survey. / Kang, Hee Taik; Shim, Jae Yong; Lee, Hye Ree; Park, Byoung Jin; Linton, John A.; Lee, Yong Jae.

In: Journal of Epidemiology, Vol. 24, No. 2, 2014, p. 109-116.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Trends in prevalence of overweight and obesity in Korean adults, 1998-2009

T2 - The Korean national health and nutrition examination survey

AU - Kang, Hee Taik

AU - Shim, Jae Yong

AU - Lee, Hye Ree

AU - Park, Byoung Jin

AU - Linton, John A.

AU - Lee, Yong Jae

PY - 2014

Y1 - 2014

N2 - Background: Although obesity is increasing worldwide and becoming a major public health problem, some countries report a trend toward stabilization. We investigated prevalence trends in overweight/obesity and obesity among Korean adults during a 12-year period. Methods: This study was based on the Korean National Health and Nutrition Examination Survey (KNHANES) I (1998), II (2001), III (2005), and IV (2007-2009). The χ2 and ANOVA tests were used to compare the prevalence and mean values for age and BMI, respectively. P-values for trends were determined by linear and logistic regression analyses, with KNHANES phase as the continuous variable. Results: The prevalences of overweight/obesity in KNHANES I through IV were 50.8%, 57.4%, 62.5%, and 62.6%, respectively, among men (P for trend = 0.002, ß = 0.021) and 47.3%, 51.9%, 50.0%, and 48.9% among women (P for trend = 0.017, ß = -0.015). The respective prevalences of obesity were 26.0%, 32.4%, 35.1%, and 36.3% among men (P for trend = 0.006, ß = 0.018) and 26.5%, 29.3%, 28.0%, and 27.6% among women (P for trend = 0.143, ß = -0.008). During the same period, the respective prevalences of grade 2 obesity (BMI ≥30 kg/m2) were 1.7%, 2.8%, 3.6%, and 3.8% among men (P for trend = 0.075, ß = 0.005) and 3.0%, 3.5%, 3.4%, and 4.0% among women (P for trend = 0.398, ß = 0.003). Conclusions: The prevalences of overweight/obesity and obesity showed an upward trend among men during the 12-year period, whereas the prevalence of overweight/obesity slightly decreased among women from 2001.

AB - Background: Although obesity is increasing worldwide and becoming a major public health problem, some countries report a trend toward stabilization. We investigated prevalence trends in overweight/obesity and obesity among Korean adults during a 12-year period. Methods: This study was based on the Korean National Health and Nutrition Examination Survey (KNHANES) I (1998), II (2001), III (2005), and IV (2007-2009). The χ2 and ANOVA tests were used to compare the prevalence and mean values for age and BMI, respectively. P-values for trends were determined by linear and logistic regression analyses, with KNHANES phase as the continuous variable. Results: The prevalences of overweight/obesity in KNHANES I through IV were 50.8%, 57.4%, 62.5%, and 62.6%, respectively, among men (P for trend = 0.002, ß = 0.021) and 47.3%, 51.9%, 50.0%, and 48.9% among women (P for trend = 0.017, ß = -0.015). The respective prevalences of obesity were 26.0%, 32.4%, 35.1%, and 36.3% among men (P for trend = 0.006, ß = 0.018) and 26.5%, 29.3%, 28.0%, and 27.6% among women (P for trend = 0.143, ß = -0.008). During the same period, the respective prevalences of grade 2 obesity (BMI ≥30 kg/m2) were 1.7%, 2.8%, 3.6%, and 3.8% among men (P for trend = 0.075, ß = 0.005) and 3.0%, 3.5%, 3.4%, and 4.0% among women (P for trend = 0.398, ß = 0.003). Conclusions: The prevalences of overweight/obesity and obesity showed an upward trend among men during the 12-year period, whereas the prevalence of overweight/obesity slightly decreased among women from 2001.

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