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Effect change of obesity on diabetes depending on measurement: self-reported body mass index from 2012 Community Health Survey vs. directly measured from the Korea National Health and Nutrition Examination Survey
Kyuhyun Yoon, Kyungduk Min, Heeran Chun, Soong-Nang Jang, Sung-il Cho
Epidemiol Health. 2015;37:e2015001.   Published online January 6, 2015
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AbstractAbstract AbstractSummary PDF
Obesity is a well-recognized risk factor for type 2 diabetes mellitus (DM) among young and middle-aged adults in South Korea. To elaborate on the association between obesity and DM, subjective data from self-reporting survey or objective data from health examination is generally used. This study was conducted to validate the change of association from using these different measurements.
Community Health Survey data and Korea National Health and Nutrition Examination Survey data, as subjective and objective data respectively, were used. Population, resident in Seoul and over 45 aged, were selected for the study and the association between obesity and DM were defined by using multivariate logistic regression model.
In subjective data, DM prevalence was 12.4% (male, 14.7; female, 10.6) and obesity prevalence was 26.0% (male, 29.2; female, 23.4). Whereas, in objective data, DM prevalence was 15.0% (male, 17.8; female, 12.9), and obese population was 32.4% (male, 34.4; female, 30.8). Based on the effect of obesity on DM prevalence from each data, using objective data increased the impact of obesity. Difference of relative risk of obesity between from subjective data and from objective was bigger in female than male and statistically significant.
The differences of association pattern between subjective and objective data were found, due to higher obesity prevalence in objective data, and discrepancies of socio-economic status. These discrepancies could be inevitable Therefore we have to face them proactively, and understand the different aspect of various variables from different measurement.
Korean summary
지역사회건강조사는 각 지역의 건강관련 지표들을 제시하기 위한 기본 목적을 가지고 있으나, 자가보고를 통한 자료수집에 의존하고 있다는 면에서 연구결과의 신뢰성에 한계를 가지고 있다고 인식되어왔다. 본 연구는 실측자료와 자가보고자료에서의 분석결과차이를 파악함으로써, 이러한 인식에 대한 직접적 평가와 더불어, 자가보고자료에 대한 활용도 증진에 기여하고자 하였다. 연구 결과, 비만의 당뇨병에 대한 영향은 실측자료보다 자가보고자료에서 더 작아졌고, 이러한 차이는 남성에서보다 여성에서 더 크게 나타났다.


Citations to this article as recorded by  
  • Comparison of estimates and time series stability of Korea Community Health Survey and Korea National Health and Nutrition Examination Survey
    Ji Son Ki, Ho Kim
    Epidemiology and Health.2019; 41: e2019012.     CrossRef

Epidemiol Health : Epidemiology and Health