Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Obesity leads to high blood pressure in the young

08.03.2004


American Heart Association meeting report



It takes about ten years for high blood pressure in young people to develop after they become overweight, and obesity is on a steady upward climb in the young, according to researchers presenting today at the American Heart Association’s 44th Annual Conference on Cardiovascular Disease Epidemiology and Prevention.

Obesity is one of the strongest predictors of hypertension in young adults.


The U.S. Centers for Disease Control and Prevention tracked the health and nutrition of Americans in the National Health and Nutrition Examination Surveys for more than forty years. NHANES I encompassed the years 1971-1974, NHANES II covered 1976-1980, NHANES III covered 1988-1994 and the most recently completed survey, NHANES IV, part I, followed Americans from 1999-2000.

Comparing data from the four surveys, researchers found a trend between overweight and high blood pressure in children 8 to 17 years-old. Rebecca Din-Dzietham, M.D., M.P.H., Ph.D., assistant professor in the social epidemiology research division of the Department of Community Health and Preventive Medicine at Morehouse School of Medicine, and colleagues analyzed data on 3,417 children from NHANES I, 3,039 from NHANES II, 3,432 from NHANES III and 2,211 from NHANES IV. They recorded age, gender, blood pressure and body mass index (BMI, an index of height-adjusted weight) on black and white children.

The researchers categorized the children based on definition from the National Task Force on High Blood Pressure in Children and Adolescents. Children with blood pressure in the 90th percentile or above were classified as having high blood pressure. Children with BMI in the 95th percentile or above were classified as obese according to the CDC growth chart. Overweight was defined as BMI in the 85th to 94.9th percentile range. Normal weight was below the 85th percentile.

High blood pressure among children decreased between NHANES I (1971) and NHANES III (1988). However, between NHANES III and IV, (1988 and 1999), high blood pressure rose sharply.

The increase in high blood pressure prevalence was greater among obese children than in children with lower BMIs. Prevalence of high blood pressure increased 4.2 percent in overweight children, 3.5 percent in obese children and 2.6 percent in normal weight children between NHANES III and NHANES IV. Similar patterns were seen for both systolic and diastolic blood pressure.

The increase in high blood pressure follows 10 years after an increase in body mass index years in the children.

"The HBP trends in youth mirrors adult trends in hypertension," said Din-Dzietham. "After NHANES II, BMIs start climbing like we’re going up Mt. Everest."

Children started eating more fat, eating larger servings and exercising less. Television is often a big factor, as are fewer hours of physical education at school. Parents need to be educated about the importance of body mass index as a ratio of weight over height and not just consider weight.

"Intervention on weight control needs to start early. We know that children with high blood pressure develop signs of heart disease early," she said.

"Weight is the main culprit, and obesity is turning into a major public health risk factor."

Co-authors are Yong Liu, M.S., Rakalle Collins, Ph.D., Gary Gibbons, M.D., Sharon Davis, M.Ed., M.P.A, Ph.D. and Tonya Stancil, Ph.D.

Carole Bullock | EurekAlert!
Further information:
http://www.americanheart.org/

More articles from Health and Medicine:

nachricht Penn studies find promise for innovations in liquid biopsies
30.03.2017 | University of Pennsylvania School of Medicine

nachricht 'On-off switch' brings researchers a step closer to potential HIV vaccine
30.03.2017 | University of Nebraska-Lincoln

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

'On-off switch' brings researchers a step closer to potential HIV vaccine

30.03.2017 | Health and Medicine

Penn studies find promise for innovations in liquid biopsies

30.03.2017 | Health and Medicine

An LED-based device for imaging radiation induced skin damage

30.03.2017 | Medical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>