The epidemiological transition and the global childhood obesity epidemic

ISCOLE Research Group

Research output: Contribution to journalArticle

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Abstract

OBJECTIVES:

Childhood obesity is now recognized as a global public health issue. Social patterning of obesity, consistent with the theory of epidemiologic transition, has not been well described in children, and the limited research has focused on developed settings. The aim of this study was to describe the relationship between childhood obesity and household income using objective measures of adiposity and to explore how this relationship differs across levels of country human development.
METHODS:

The International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) was a multi-national cross-sectional study conducted in 12 urban/suburban study sites that represented all inhabited continents and wide ranges of development. ISCOLE collected objectively measured height, body mass and percentage body fat in 7341 10-year-old children. Multi-level random-effects models were used to examine income gradients in several obesity measures.
RESULTS:

The mean age of the children was 10.4 years, and 12.6% were obese, ranging from 5.4% (Finland) to 23.8% (China). For both boys and girls, obesity prevalence, body fat percentage and body mass index (BMI) z-score increased linearly with higher income at lower levels of development (all P for trend less than or equal to0.0012), but decreased linearly with higher income at higher levels of development (all P for trend less than or equal to0.0003). Country human development explained 75% of the variation in the country-specific income–obesity relationships (r=−0.87, P=0.0003).
CONCLUSIONS:

Results are consistent with the theory of epidemiologic transition. Global efforts to control obesity must account for socioeconomic factors within a country’s context. Future research should seek to understand global socioeconomic patterns in obesity-related lifestyle behaviors.
Original languageEnglish
Pages (from-to)S3-S8
Number of pages6
JournalInternational Journal of Obesity Supplements
Volume5
Issue numberS2
Early online date8 Dec 2015
DOIs
Publication statusPublished - 31 Dec 2015

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Pediatric Obesity
Obesity
Life Style
Human Development
Adipose Tissue
Body Height
Adiposity
Finland
China
Body Mass Index
Public Health
Cross-Sectional Studies
Research

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The epidemiological transition and the global childhood obesity epidemic. / ISCOLE Research Group.

In: International Journal of Obesity Supplements, Vol. 5, No. S2, 31.12.2015, p. S3-S8.

Research output: Contribution to journalArticle

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abstract = "OBJECTIVES: Childhood obesity is now recognized as a global public health issue. Social patterning of obesity, consistent with the theory of epidemiologic transition, has not been well described in children, and the limited research has focused on developed settings. The aim of this study was to describe the relationship between childhood obesity and household income using objective measures of adiposity and to explore how this relationship differs across levels of country human development.METHODS: The International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) was a multi-national cross-sectional study conducted in 12 urban/suburban study sites that represented all inhabited continents and wide ranges of development. ISCOLE collected objectively measured height, body mass and percentage body fat in 7341 10-year-old children. Multi-level random-effects models were used to examine income gradients in several obesity measures.RESULTS: The mean age of the children was 10.4 years, and 12.6{\%} were obese, ranging from 5.4{\%} (Finland) to 23.8{\%} (China). For both boys and girls, obesity prevalence, body fat percentage and body mass index (BMI) z-score increased linearly with higher income at lower levels of development (all P for trend less than or equal to0.0012), but decreased linearly with higher income at higher levels of development (all P for trend less than or equal to0.0003). Country human development explained 75{\%} of the variation in the country-specific income–obesity relationships (r=−0.87, P=0.0003).CONCLUSIONS: Results are consistent with the theory of epidemiologic transition. Global efforts to control obesity must account for socioeconomic factors within a country’s context. Future research should seek to understand global socioeconomic patterns in obesity-related lifestyle behaviors.",
author = "Broyles, {S. T.} and Denstel, {K. D.} and Church, {T. S.} and J-P. Chaput and M. Fogelholm and G. Hu and R. Kuriyan and A. Kurpad and Lambert, {E. V.} and C. Maher and J. Maia and V. Matsudo and T. Olds and V. Onywera and Sarmiento, {O. L.} and M. Standage and Tremblay, {M. S.} and C. Tudor-Locke and P. Zhao and Katzmarzyk, {P. T.} and {ISCOLE Research Group}",
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AU - Broyles, S. T.

AU - Denstel, K. D.

AU - Church, T. S.

AU - Chaput, J-P.

AU - Fogelholm, M.

AU - Hu, G.

AU - Kuriyan, R.

AU - Kurpad, A.

AU - Lambert, E. V.

AU - Maher, C.

AU - Maia, J.

AU - Matsudo, V.

AU - Olds, T.

AU - Onywera, V.

AU - Sarmiento, O. L.

AU - Standage, M.

AU - Tremblay, M. S.

AU - Tudor-Locke, C.

AU - Zhao, P.

AU - Katzmarzyk, P. T.

AU - ISCOLE Research Group

PY - 2015/12/31

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N2 - OBJECTIVES: Childhood obesity is now recognized as a global public health issue. Social patterning of obesity, consistent with the theory of epidemiologic transition, has not been well described in children, and the limited research has focused on developed settings. The aim of this study was to describe the relationship between childhood obesity and household income using objective measures of adiposity and to explore how this relationship differs across levels of country human development.METHODS: The International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) was a multi-national cross-sectional study conducted in 12 urban/suburban study sites that represented all inhabited continents and wide ranges of development. ISCOLE collected objectively measured height, body mass and percentage body fat in 7341 10-year-old children. Multi-level random-effects models were used to examine income gradients in several obesity measures.RESULTS: The mean age of the children was 10.4 years, and 12.6% were obese, ranging from 5.4% (Finland) to 23.8% (China). For both boys and girls, obesity prevalence, body fat percentage and body mass index (BMI) z-score increased linearly with higher income at lower levels of development (all P for trend less than or equal to0.0012), but decreased linearly with higher income at higher levels of development (all P for trend less than or equal to0.0003). Country human development explained 75% of the variation in the country-specific income–obesity relationships (r=−0.87, P=0.0003).CONCLUSIONS: Results are consistent with the theory of epidemiologic transition. Global efforts to control obesity must account for socioeconomic factors within a country’s context. Future research should seek to understand global socioeconomic patterns in obesity-related lifestyle behaviors.

AB - OBJECTIVES: Childhood obesity is now recognized as a global public health issue. Social patterning of obesity, consistent with the theory of epidemiologic transition, has not been well described in children, and the limited research has focused on developed settings. The aim of this study was to describe the relationship between childhood obesity and household income using objective measures of adiposity and to explore how this relationship differs across levels of country human development.METHODS: The International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) was a multi-national cross-sectional study conducted in 12 urban/suburban study sites that represented all inhabited continents and wide ranges of development. ISCOLE collected objectively measured height, body mass and percentage body fat in 7341 10-year-old children. Multi-level random-effects models were used to examine income gradients in several obesity measures.RESULTS: The mean age of the children was 10.4 years, and 12.6% were obese, ranging from 5.4% (Finland) to 23.8% (China). For both boys and girls, obesity prevalence, body fat percentage and body mass index (BMI) z-score increased linearly with higher income at lower levels of development (all P for trend less than or equal to0.0012), but decreased linearly with higher income at higher levels of development (all P for trend less than or equal to0.0003). Country human development explained 75% of the variation in the country-specific income–obesity relationships (r=−0.87, P=0.0003).CONCLUSIONS: Results are consistent with the theory of epidemiologic transition. Global efforts to control obesity must account for socioeconomic factors within a country’s context. Future research should seek to understand global socioeconomic patterns in obesity-related lifestyle behaviors.

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DO - 10.1038/ijosup.2015.12

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JO - International Journal of Obesity Supplements

JF - International Journal of Obesity Supplements

SN - 2046-2166

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