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17-year trends of body mass index, overweight, and obesity among adolescents from 2005 to 2021, including the COVID-19 pandemic: a Korean national representative study

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posted on 2023-07-26, 16:09 authored by CY Ban, H Shin, S Eum, HJ Yon, SW Lee, YS Choi, YH Shin, JU Shin, A Koyanagi, L Jacob, Lee Smith, C Min, AO Yeniova, SY Kim, J Lee, SG Yeo, R Kwon, MJ Koo, G Fond, L Boyer, KP Acharya, S Kim, WH Geol, S Park, JI Shin, SY Rhee, DK Yon
OBJECTIVE: There is a lack of pediatric studies that have analyzed trends in mean body mass index (BMI) and the prevalence of obesity and overweight over a period that includes the mid-stage of the COVID-19 pandemic. Thus, we aimed to investigate trends in BMI, overweight, and obesity among Korean adolescents from 2005 to 2021, including the COVID-19 pandemic. SUBJECTS AND METHODS: We used data from the Korea Youth Risk Behavior Web-based Survey (KYRBS), which is nationally representative of South Korea. The study included middle- and high-school students between the ages of 12 and 18. We examined trends in mean BMI and prevalence of obesity and/or overweight during the COVID-19 pandemic and compared these to those of pre-pandemic trends in each subgroup by gender, grade, and residential region. RESULTS: Data from 1,111,300 adolescents (mean age: 15.04 years) were analyzed. The estimated weighted mean BMI was 20.48 kg/m2 (95% CI, 20.46-20.51) between 2005 and 2007, and this was 21.61 kg/m2 (95% CI, 21.54-21.68) in 2021. The prevalence of overweight and obesity was 13.1% (95% CI, 12.9-13.3%) between 2005 and 2007 and 23.4% (95% CI, 22.8-24.0%) in 2021. The mean BMI and prevalence of obesity and overweight have gradually increased over the past 17 years; however, the extent of change in mean BMI and in the prevalence of obesity and overweight during the pandemic was distinctly less than before. The 17-year trends in the mean BMI, obesity, and overweight exhibited a considerable rise from 2005 to 2021; however, the slope during the COVID-19 pandemic (2020-2021) was significantly less prominent than in the pre-pandemic (2005-2019). CONCLUSIONS: These findings enable us to comprehend long-term trends in the mean BMI of Korean adolescents and further emphasize the need for practical prevention measures against youth obesity and overweight.

History

Refereed

  • Yes

Volume

27

Issue number

4

Publication title

European Review for Medical and Pharmacological Sciences

ISSN

2284-0729

Publisher

Verduci Editore

File version

  • Published version

Language

  • eng

Legacy posted date

2023-03-17

Legacy creation date

2023-03-17

Legacy Faculty/School/Department

Faculty of Science & Engineering

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