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Consideration to differences and causes of adolescent obesity rate surveys
Journal of the Korean Data & Information Science Society 2019;30:1319-28
Published online November 30, 2019;
© 2019 Korean Data and Information Science Society.

Eunsik Park1

1Department of Statistics, Chonnam National University
Correspondence to: Professor, Department of Statistics, Chonnam National University, 77, Yongbong-Ro, Buk-Gu, Gwangju, 61186, Korea. E-mail:
Received July 20, 2019; Revised September 22, 2019; Accepted September 26, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Different obesity rates for the same population from Adolescent Health Behavior Online Survey and Student Health Survey samples motivated us to look into these two surveys looking for causes in terms of obesity criteria, survey methods, and distribution. Our exploration presented descriptive statistics and BMI boxplots and we analyzed obese students depending on their obesity levels. For all students and obese students, respectively, heights and weights were compared between the two surveys. Analysis on Student Health Survey Sample Statistic revealed that obese students entered their heights and weights incorrectly, which is the major reason to the different obesity rates.
Keywords : Adolescent health behavior online survey, obesity rate, student health survey.