Relationship Between Socioeconomic Status and the Prevalence of Underweight, Overweight or Obesity in a General Japanese Population

NIPPON DATA2010

Tomiyo Nakamura, Yasuyuki Nakamura, Shigeyuki Saitoh, Tomonori Okamura, Masahiko Yanagita, Katsushi Yoshita, Yoshikuni Kita, Yoshitaka Murakami, Hiroshi Yokomichi, Nobuo Nishi, Nagako Okuda, Aya Kadota, Takayoshi Ohkubo, Hirotsugu Ueshima, Akira Okayama, Katsuyuki Miura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

BACKGROUND: Socioeconomic status (SES) imbalances in developed and developing countries may result in individuals being overweight and obese. However, few studies have investigated this issue in Japan. We herein examined the relationship between SES and being underweight, overweight or obese according to sex and age groups (20-64 or ≥65 years) in Japan.

METHODS: In 2010, we established a cohort of participants in the National Health and Nutrition Survey of Japan. We divided 2,491 participants (1,081 men and 1,410 women) according to the WHO definitions of underweight, overweight or obesity and performed multinomial logistic analyses using BMI <18.5 kg/m2 (underweight), BMI 25.0-29.9 kg/m2 (overweight), and BMI ≥30.0 kg/m2 (obese) versus BMI 18.5-24.9 kg/m2 (normal) as the outcome, with SES groups as the main explanatory variables.

RESULTS: In adult men, a lower education level relative to a higher education level was inversely associated with obesity after adjustments for other SESs (odds ratio [OR] 0.41; 95% confidence interval [CI], 0.18-0.96). However, in adult women, lower education level was positively associated with being overweight and obese (OR 1.67; 95% CI, 1.07-2.49 for overweight and OR 2.66; 95% CI, 1.01-7.01 for obese). In adult women, a lower household income was positively associated with being overweight and obese (obese: OR 4.84; 95% CI, 1.36-17.18 for those with a household income <2 million JPY relative to those with ≥6 million JPY).

CONCLUSIONS: In adult women, a lower education level and lower household income were positively associated with being overweight or obese. In contrast, in adult men, a lower education level was inversely associated with obesity. Gender and age differences in SESs affect the prevalence of being overweight or obese.

Original languageEnglish
Pages (from-to)S10-S16
JournalJournal of Epidemiology
Volume28
DOIs
Publication statusPublished - 2018 Jan 1

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Thinness
Social Class
Obesity
Population
Education
Odds Ratio
Confidence Intervals
Japan
Nutrition Surveys
Health Surveys
Developed Countries
Developing Countries
Age Groups

Keywords

  • education
  • household income
  • obesity
  • overweight
  • socioeconomic status

ASJC Scopus subject areas

  • Epidemiology

Cite this

Relationship Between Socioeconomic Status and the Prevalence of Underweight, Overweight or Obesity in a General Japanese Population : NIPPON DATA2010. / Nakamura, Tomiyo; Nakamura, Yasuyuki; Saitoh, Shigeyuki; Okamura, Tomonori; Yanagita, Masahiko; Yoshita, Katsushi; Kita, Yoshikuni; Murakami, Yoshitaka; Yokomichi, Hiroshi; Nishi, Nobuo; Okuda, Nagako; Kadota, Aya; Ohkubo, Takayoshi; Ueshima, Hirotsugu; Okayama, Akira; Miura, Katsuyuki.

In: Journal of Epidemiology, Vol. 28, 01.01.2018, p. S10-S16.

Research output: Contribution to journalArticle

Nakamura, T, Nakamura, Y, Saitoh, S, Okamura, T, Yanagita, M, Yoshita, K, Kita, Y, Murakami, Y, Yokomichi, H, Nishi, N, Okuda, N, Kadota, A, Ohkubo, T, Ueshima, H, Okayama, A & Miura, K 2018, 'Relationship Between Socioeconomic Status and the Prevalence of Underweight, Overweight or Obesity in a General Japanese Population: NIPPON DATA2010', Journal of Epidemiology, vol. 28, pp. S10-S16. https://doi.org/10.2188/jea.JE20170249
Nakamura, Tomiyo ; Nakamura, Yasuyuki ; Saitoh, Shigeyuki ; Okamura, Tomonori ; Yanagita, Masahiko ; Yoshita, Katsushi ; Kita, Yoshikuni ; Murakami, Yoshitaka ; Yokomichi, Hiroshi ; Nishi, Nobuo ; Okuda, Nagako ; Kadota, Aya ; Ohkubo, Takayoshi ; Ueshima, Hirotsugu ; Okayama, Akira ; Miura, Katsuyuki. / Relationship Between Socioeconomic Status and the Prevalence of Underweight, Overweight or Obesity in a General Japanese Population : NIPPON DATA2010. In: Journal of Epidemiology. 2018 ; Vol. 28. pp. S10-S16.
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abstract = "BACKGROUND: Socioeconomic status (SES) imbalances in developed and developing countries may result in individuals being overweight and obese. However, few studies have investigated this issue in Japan. We herein examined the relationship between SES and being underweight, overweight or obese according to sex and age groups (20-64 or ≥65 years) in Japan.METHODS: In 2010, we established a cohort of participants in the National Health and Nutrition Survey of Japan. We divided 2,491 participants (1,081 men and 1,410 women) according to the WHO definitions of underweight, overweight or obesity and performed multinomial logistic analyses using BMI <18.5 kg/m2 (underweight), BMI 25.0-29.9 kg/m2 (overweight), and BMI ≥30.0 kg/m2 (obese) versus BMI 18.5-24.9 kg/m2 (normal) as the outcome, with SES groups as the main explanatory variables.RESULTS: In adult men, a lower education level relative to a higher education level was inversely associated with obesity after adjustments for other SESs (odds ratio [OR] 0.41; 95{\%} confidence interval [CI], 0.18-0.96). However, in adult women, lower education level was positively associated with being overweight and obese (OR 1.67; 95{\%} CI, 1.07-2.49 for overweight and OR 2.66; 95{\%} CI, 1.01-7.01 for obese). In adult women, a lower household income was positively associated with being overweight and obese (obese: OR 4.84; 95{\%} CI, 1.36-17.18 for those with a household income <2 million JPY relative to those with ≥6 million JPY).CONCLUSIONS: In adult women, a lower education level and lower household income were positively associated with being overweight or obese. In contrast, in adult men, a lower education level was inversely associated with obesity. Gender and age differences in SESs affect the prevalence of being overweight or obese.",
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AU - Nakamura, Yasuyuki

AU - Saitoh, Shigeyuki

AU - Okamura, Tomonori

AU - Yanagita, Masahiko

AU - Yoshita, Katsushi

AU - Kita, Yoshikuni

AU - Murakami, Yoshitaka

AU - Yokomichi, Hiroshi

AU - Nishi, Nobuo

AU - Okuda, Nagako

AU - Kadota, Aya

AU - Ohkubo, Takayoshi

AU - Ueshima, Hirotsugu

AU - Okayama, Akira

AU - Miura, Katsuyuki

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N2 - BACKGROUND: Socioeconomic status (SES) imbalances in developed and developing countries may result in individuals being overweight and obese. However, few studies have investigated this issue in Japan. We herein examined the relationship between SES and being underweight, overweight or obese according to sex and age groups (20-64 or ≥65 years) in Japan.METHODS: In 2010, we established a cohort of participants in the National Health and Nutrition Survey of Japan. We divided 2,491 participants (1,081 men and 1,410 women) according to the WHO definitions of underweight, overweight or obesity and performed multinomial logistic analyses using BMI <18.5 kg/m2 (underweight), BMI 25.0-29.9 kg/m2 (overweight), and BMI ≥30.0 kg/m2 (obese) versus BMI 18.5-24.9 kg/m2 (normal) as the outcome, with SES groups as the main explanatory variables.RESULTS: In adult men, a lower education level relative to a higher education level was inversely associated with obesity after adjustments for other SESs (odds ratio [OR] 0.41; 95% confidence interval [CI], 0.18-0.96). However, in adult women, lower education level was positively associated with being overweight and obese (OR 1.67; 95% CI, 1.07-2.49 for overweight and OR 2.66; 95% CI, 1.01-7.01 for obese). In adult women, a lower household income was positively associated with being overweight and obese (obese: OR 4.84; 95% CI, 1.36-17.18 for those with a household income <2 million JPY relative to those with ≥6 million JPY).CONCLUSIONS: In adult women, a lower education level and lower household income were positively associated with being overweight or obese. In contrast, in adult men, a lower education level was inversely associated with obesity. Gender and age differences in SESs affect the prevalence of being overweight or obese.

AB - BACKGROUND: Socioeconomic status (SES) imbalances in developed and developing countries may result in individuals being overweight and obese. However, few studies have investigated this issue in Japan. We herein examined the relationship between SES and being underweight, overweight or obese according to sex and age groups (20-64 or ≥65 years) in Japan.METHODS: In 2010, we established a cohort of participants in the National Health and Nutrition Survey of Japan. We divided 2,491 participants (1,081 men and 1,410 women) according to the WHO definitions of underweight, overweight or obesity and performed multinomial logistic analyses using BMI <18.5 kg/m2 (underweight), BMI 25.0-29.9 kg/m2 (overweight), and BMI ≥30.0 kg/m2 (obese) versus BMI 18.5-24.9 kg/m2 (normal) as the outcome, with SES groups as the main explanatory variables.RESULTS: In adult men, a lower education level relative to a higher education level was inversely associated with obesity after adjustments for other SESs (odds ratio [OR] 0.41; 95% confidence interval [CI], 0.18-0.96). However, in adult women, lower education level was positively associated with being overweight and obese (OR 1.67; 95% CI, 1.07-2.49 for overweight and OR 2.66; 95% CI, 1.01-7.01 for obese). In adult women, a lower household income was positively associated with being overweight and obese (obese: OR 4.84; 95% CI, 1.36-17.18 for those with a household income <2 million JPY relative to those with ≥6 million JPY).CONCLUSIONS: In adult women, a lower education level and lower household income were positively associated with being overweight or obese. In contrast, in adult men, a lower education level was inversely associated with obesity. Gender and age differences in SESs affect the prevalence of being overweight or obese.

KW - education

KW - household income

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KW - socioeconomic status

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