DOI QR코드

DOI QR Code

Comparative Observation of Body Mass Index among Adults in Korea and Japan

  • Received : 2021.07.07
  • Accepted : 2021.08.12
  • Published : 2021.08.31

Abstract

Background: Obesity is a major public health problem that is causally related to serious medical conditions. In this study, the public health implications of obesity based on body mass index (BMI) with anthropometric measures among adults in the Republic of Korea and Japan in 2019 were compared. Methods: A simple cross-section, nationally representative of the raw data from the National Health and Nutrition Examination Survey in 2019 between Korea and Japan were used. We analyzed the data of those categorized as obese with a BMI of ≥25 kg/m2 according to the World Health Organization Expert Consultation. Results: The average values of BMI based on body height and body weight among males and females in Korea were 24.6±0.08 and 23.3±0.09, respectively; those in Japan were 23.9±0.08 and 22.6±0.08, respectively. The measured anthropometric values were obviously higher in Korean than in Japan (P<0.01). The prevalence rates (PRs) of obesity by sex in Korea were 41.4% among males and 27.3% females; those in Japan were 32.5% among males and 22.0% among females. The statistically significant results showed that the total obesity rate was higher in males than in females in both countries (P<0.01). The PRs of obesity in Korea were 41.4% in males and 27.3% in females; those in Japan were 32.5% in males and 22.0% in females. The statistically significantly PR of total obesity among Korean adults was greater than that among Japanese adults (P<0.01). Conclusion: The PR of obesity in Korea relative to that in Japan showed a gradually increasing trend. Obesity is a major problem, especially in the pilot group. Reducing the prevalence of obesity among pilots is important for reducing in-flight medical incapacitation and ensuring flight safety. Obesity management is necessary to prevent obesity-related diseases and promote pilot health.

Keywords

Acknowledgement

We thank the National Health and Nutrition Examination Survey in 2019 by the Korea Disease Control and Prevention Agency and the Ministry of Health, Labor and Welfare of Japan for the raw data used in this work.

References

  1. World Health Organization (WHO). Obesity and overweight [Internet]. Geneva: WHO; 2020 [updated 2021 Jun 9; cited 2021 Jun 7]. Available from: https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight/.
  2. Anuurad E, Shiwaku K, Nogi A, Kitajima K, Enkhmaa B, Shimono K, et al. The new BMI criteria for Asians by the regional office for the Western Pacific region of WHO are suitable for screening of overweight to prevent metabolic syndrome in elder Japanese workers. J Occup Health 2003;45:335-343. https://doi.org/10.1539/joh.45.335
  3. James PT. Obesity: the worldwide epidemic. Clin Dermatol 2004;22:276-280. https://doi.org/10.1016/j.clindermatol.2004.01.010
  4. Senauer B, Gemma M. Why is the obesity rate so low in Japan and high in the U.S.? Some possible economic explanations [Internet]. Minneapolis: University of Minnesota; 2006 [cited 2021 Jun 7]. Available from: https://doi.org/10.22004/ag.econ.14321.
  5. Low S, Chin MC, Ma S, Heng D, Deurenberg-Yap M. Rationale for redefining obesity in Asians. Ann Acad Med Singap 2009;38:66-69. https://doi.org/10.47102/annals-acadmedsg.V38N1p66
  6. WHO Expert Consultation. Appropriate body-mass index for Asian populations and its implications for policy and intervention strategies. Lancet 2004;363:157-163. https://doi.org/10.1016/S0140-6736(03)15268-3
  7. World Health Organization (WHO). The Asia-Pacific perspective: redefining obesity and its treatment [Internet]. Sydney: Health Communications Australia; 2000 [cited 2021 Jun 7]. Available from: https://apps.who.int/iris/handle/10665/206936.
  8. Examination Committee of Criteria for 'Obesity Disease' in Japan; Japan Society for the Study of Obesity. New criteria for 'obesity disease' in Japan. Circ J 2002;66:987-992. https://doi.org/10.1253/circj.66.987
  9. James WP, Chunming C, Inoue S. Appropriate Asian body mass indices? Obes Rev 2002;3:139. https://doi.org/10.1046/j.1467-789x.2002.00063.x
  10. Korea Centers for Disease Control and Prevention (KCDC). The National Health and Nutritional Examination Survey (NHANES VIII-1) [Internet]. Cheongju: KCDC; 2021 [cited 2021 Jun 14]. Available from: https://knhanes.kdca.go.kr/knhanes/sub04/sub04_04_01.do.
  11. Ministry of Health, Labor and Welfare (MHLW). The National Health and Nutritional Examination Survey in Japan (NHANES) [Internet]. Tokyo: MHLW; 2019 [cited 2021 Jun 14]. Available from: www.mhlw.go.jp.
  12. Hsieh SD, Yoshinaga H, Muto T. Waist-to-height ratio, a simple and practical index for assessing central fat distribution and metabolic risk in Japanese men and women. Int J Obes Relat Metab Disord 2003;27:610-616. https://doi.org/10.1038/sj.ijo.0802259
  13. Yang JJ, Shiwaku K, Nabika T, Masuda J, Kobayashi S. High frequency of cardiovascular risk factors in overweight adult Japanese subjects. Arch Med Res 2007;38:337-344. https://doi.org/10.1016/j.arcmed.2006.10.014
  14. Shiwaku K, Anuurad E, Enkhmaa B, Nogi A, Kitajima K, Shimono K, et al. Overweight Japanese with body mass indexes of 23.0-24.9 have higher risks for obesity-associated disorders: a comparison of Japanese and Mongolians. Int J Obes Relat Metab Disord 2004;28:152-158. https://doi.org/10.1038/sj.ijo.0802486
  15. Kang JG, Park CY. Gender and age differences in obesity among Korean adults. Korean J Intern Med 2013;28:19-21. https://doi.org/10.3904/kjim.2013.28.1.19
  16. Kwon YH, Lee MJ, Lee WC. Use of appropriate body mass index cutoff for obesity among Korean civilian pilots and its comparison to general adult men. Korean J Aerosp Environ Med 2017;27:67-71.
  17. Kim CS, Ko SH, Kwon HS, Kim NH, Kim JH, Lim S, et al.; Taskforce Team of Diabetes Fact Sheet of the Korean Diabetes Association. Prevalence, awareness, and management of obesity in Korea: data from the Korea National Health and Nutrition Examination Survey (1998-2011). Diabetes Metab J 2014;38:35-43. https://doi.org/10.4093/dmj.2014.38.1.35