Abstract
Background:
Obesity epidemic is related to industrialization and urbanization that have lead to changes in nutrition, lifestyle and socio-economic status. However, information on the trajectory of the obesity epidemic in populations experiencing rapid economic development is limited. We therefore investigate trends in obesity from 2002 to 2010 in a southern Chinese population experiencing world’s fastest economic development.
Methods:
Between 2002 and 2010 four standardized surveys were conducted in a population of 85 million residents in Guangdong, China. Multistage cluster sampling was adopted to recruit representative samples. Weight, height and waist circumference of the participants were measured in a standardized way. The analysis included residents aged between 18 and 69 years. The number of participants included in the present analysis for Surveys conducted in 2002, 2004, 2007 and 2010 were 13058, 7646, 6441 and 8575, respectively.
Results:
From year 2002 to 2010, the age-standardized Body mass index (BMI) insignificantly changed from 21.7 kg m−2 to 22.3 kg m−2, and the prevalence of overweight and overall obesity from 15.8 to 16.6% (both P>0.05). The age-standardized waist circumference increased from 73.7 to 78.4 cm, and prevalence of abdominal obesity increased from 12.9 to 23.7% (both P<0.001). In urban areas, BMI and overall obesity changed little during the 8-year period (BMI increased from 22.6 to 22.7 kg m−2 and overall obesity changed from 23.7 to 21.4%), whereas there were slight increases of the same in rural areas (BMI increased from 20.8 to 22.1 kg m−2and overall obesity increased from 8.2 to 13.3%). Waist circumference and abdominal obesity increased significantly in both areas, but the increase was more pronounced in rural areas (in urban area, waist circumference increased from 75.1 to 78.5 cm and abdominal obesity from 16.8 to 26.5%; in rural area, waist circumference from 72.2 to 78.3 and abdominal obesity from 8.8 to 22.0%).
Conclusions:
BMI and overall obesity in this population, which has experienced the world’s fastest economic development over the past three decades, has been leveling-off, while waist circumference and abdominal obesity, independent predictors of cardiovascular risk, have continued to rise. Our findings suggest that obesity epidemic transition in rapidly developing populations may be much faster than what has been observed in Western countries.
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Acknowledgements
We thank all of the participants for their generous assistance. We also thank all of the staff of the survey team for their efforts which made this study possible. These surveys were supported by the National Natural Science Foundation of China (81373081); the Guangdong Science and Technology Fund (2002 C32709), Guangzhou, China; the China Ministry of Health Special Fund (2001DEA30035), Beijing, China; the China Ministry of Science and Technology Key Research Fund (2003DIA6N008), Beijing, China; and the Ministry of Finance of the People’s Republic of China, Beijing, China.
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Lao, X., Ma, W., Sobko, T. et al. Overall obesity is leveling-off while abdominal obesity continues to rise in a Chinese population experiencing rapid economic development: analysis of serial cross-sectional health survey data 2002–2010. Int J Obes 39, 288–294 (2015). https://doi.org/10.1038/ijo.2014.95
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DOI: https://doi.org/10.1038/ijo.2014.95
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