The percentage of adolescents aged 15-17 who are overweight today is about 50 percent higher in families below the poverty line in comparison to those at or above it. That difference was not present in the 1970s and 1980s, according to researchers from the Johns Hopkins Bloomberg School of Public Health and other institutions. The scientists based their analyses on U.S. national health surveys spanning 33 years. Adolescents aged 15-17 who were in families with an income below the poverty line were more likely to have higher caloric intake from sweetened beverages, to be physically inactive and to skip breakfast. Each of these factors may have played a role in the growing difference in the percentage of overweight teens associated with family poverty. This trend was specific to adolescents aged 15-17 and was not found among adolescents aged 12-14. The study is published in the May 24/31, 2006, issue of the Journal of the American Medical Association (JAMA).
"The prevalence of overweight adolescents in the United States has more than doubled in the past three decades. And the percentage of adolescents who are overweight has increased significantly faster among the poor in comparison to the non-poor over the past decade," said Richard A. Miech, PhD, MPH, lead author of the study and an associate professor in the Johns Hopkins Bloomberg School of Public Healths Department of Mental Health.
The study authors analyzed four U.S. National Health and Nutrition Examination Surveys (NHANES)--1971-1974, 1976-1980, 1988-1994, 1999-2004. Children with a body mass index at or above the 95th percentile for their age and sex in the 2000 Centers for Disease Control and Prevention growth charts were classified as overweight. The authors found that 15- to 17-year-old adolescents with higher daily intake of calories from sweetened beverages were significantly more likely to be overweight. In addition, among high school adolescents, the percentage of daily calories from drinking sweetened beverages has increased by more than 20 percent over the past decade (from 10.7 percent to 13.2 percent). Sweetened beverage consumption also increased at a faster rate among poor versus non-poor adolescents (67 percent versus 14 percent). Today, high school adolescents who live below the poverty line are more likely to be physically inactive and also more likely to skip breakfast, both of which are associated with excessive weight gain. The researchers did not see this same trend in adolescents aged 12-14. However, non-poor black adolescents in this age range were more likely to be overweight than their poor counterparts.
Kenna L. Lowe | EurekAlert!
Diagnoses: When Are Several Opinions Better Than One?
19.07.2016 | Max-Planck-Institut für Bildungsforschung
High in calories and low in nutrients when adolescents share pictures of food online
07.04.2016 | University of Gothenburg
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
25.10.2016 | Earth Sciences
25.10.2016 | Physics and Astronomy
25.10.2016 | Life Sciences