The study led by Barry Popkin, Ph.D., W.R. Kenan Jr. Distinguished Professor of nutrition at UNC's Gillings School of Global Public Health, and Chinese researchers, used data from the China Health and Nutrition Survey (CHNS), the longest ongoing study of its kind in China. Between 1989 and 2011, the study followed more than 29,000 people in 300 communities throughout China, with surveys conducted in 1989, 1991, 1993, 1997, 2000, 2004, 2006, 2009 and 2011. The CHNS project was a joint undertaking by the University of North Carolina at Chapel Hill and the Chinese Center for Disease Control (CCDC) National Institute of Nutrition and Food Safety.
The findings appear online in Obesity Reviews (www.obesityreviews.net) Early View Section and will be published in the September issue (Obesity Reviews Volume 13, Issue 9, September 2012). Obesity Reviews is an official journal of the International Association for the Study of Obesity (IASO; http://www.iaso.org)
China has experienced unprecedented economic growth in the past two decades, but the study finds that at the same time, China has seen equally dramatic changes in the weight, diets and physical activity levels of its people. UNC-CCDC researchers followed a randomly selected sample representing 56 percent of the Chinese population in 2009 and found large increases in overweight and cardiometabolic risk factors.
"What is unprecedented is the changes in diet, weight and cardiovascular risk for children age 7 and older," said Popkin. "These estimates highlight the huge burden that China's health care system is expected to face if nothing changes."
The UNC-CCDC team observed rates of diabetes of 1.9 percent and pre-diabetes levels of 14.9 percent in Chinese children age 7-17. Researchers noted that high levels of glycosylated hemoglobin (HbA1c) were found in the children's blood. HbA1c is a measure of the average plasma-glucose concentration over time.
"The findings suggest a very high burden of chronic disease risk starting at a young age, with 1.7 million Chinese children ages 7-18 having diabetes and another 27.7 million considered prediabetic," Popkin said. "In addition, more than one-third of children under age 18 had high levels of at least one cardiometabolic risk factor."
Comparing the Chinese data with data from the United States based on National Health and Nutrition Survey (NHANES) results, the authors found that diabetes and inflammation rates were higher in the Chinese pediatric population than in the U.S. pediatric population or in other Asian countries. Researchers found 1.9 percent of Chinese children age 12-18 had diabetes, compared to 0.5 percent of children in the U.S. The study also found great disparity with respect to inflammation, a key cardiovascular risk factor; 12.1 percent of Chinese adolescents showed a high inflammation risk, compared to 8.5 percent of adolescents in the U.S.
"The number of individuals with high levels of at least one cardiovascular risk factor increased to 85 percent in individuals age 40 and older," said Penny Gordon-Larsen, Ph.D., professor of nutrition in UNC's Gillings School of Global Public Health. "Of even greater concern is the fact that we see these high levels of risk in individuals living across the entire country – in rural and urban, as well as high and low-income areas. So the impending health care costs and implications are immense."
These results reinforce earlier research by the authors that found higher levels of obesity emerging in the past decade among the poor and those living in rural areas of China.
The new study is titled "The expanding burden of cardiometabolic risk in China: the China Health and Nutrition Survey."
Research assistant professor of nutrition Shufa Du, Ph.D. and professor of nutrition Linda Adair, Ph.D., both of UNC's Gillings School of Global Public Health also co-authored the study.
Co-authors from China include Shegkai Yan, Guangzhou Improve Medical Instruments Co., Ltd., Guangzhou; Jiang Li, M.D., Department of Laboratory Medicine, China-Japan Friendship Hospital, Beijing; and Bing Zhang, Ph.D., Public Health Nutrition Department, National Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing.
The study is funded by the National Institutes of Health with additional funding from the CCDC.
Media Note: Popkin can be reached at (919) 966-1732 or email@example.com; Gordon-Larsen can be reached at (919) 843-9966; firstname.lastname@example.org
Chris Perry | EurekAlert!
A sudden drop in outdoor temperature increases the risk of respiratory infections
11.01.2017 | University of Gothenburg
Urbanization to convert 300,000 km2 of prime croplands
27.12.2016 | Mercator Research Institute on Global Commons and Climate Change (MCC) gGmbH
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...
Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.
The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...
10.01.2017 | Event News
09.01.2017 | Event News
05.01.2017 | Event News
17.01.2017 | Earth Sciences
17.01.2017 | Materials Sciences
17.01.2017 | Architecture and Construction