Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Asthma may be over-diagnosed by up to 30 percent

18.11.2008
A new research study suggests that asthma may be over-diagnosed by up to 30 per cent in Canadian adults. The study, led by Ottawa researcher Dr. Shawn Aaron, examined 496 people from eight Canadian cities who reported receiving a diagnosis of asthma from a physician.

When the individuals were retested for asthma using the accepted clinical guidelines, it was found that 30 per cent had no evidence of asthma. Two thirds of these individuals were able to safely stop taking asthma medications. The results are published in the November 18, 2008 edition of the Canadian Medical Association Journal.

"Our study suggests that there may be a substantial over-diagnosis of asthma in Canadian adults," said lead author Dr. Shawn Aaron, a Senior Scientist at the Ottawa Health Research Institute and Head of Respiratory Medicine at The Ottawa Hospital and the University of Ottawa. "This is a serious issue because asthma medications are expensive and they can have side effects. Also, an inappropriate diagnosis of asthma may obscure the true cause of a patient's symptoms."

The original goal of the study was to determine if obese people were more likely to be misdiagnosed with asthma, but the results showed that misdiagnosis was just as common in people of normal weight. The prevalence of asthma in Canada and America is five per cent overall, and 10 per cent for obese people. The overall prevalence has nearly doubled in the last 20 years.

"Asthma is a chronic disease that impacts people's quality of life. Because of the increasing number of cases, researchers have been examining diagnostic procedures to ensure that asthma is not being over-diagnosed and over-treated," said Dr. Peter Liu, Scientific Director of the Canadian Institutes of Health Research Institute of Circulatory and Respiratory Health.

Previous research has suggested that asthma is often diagnosed by family physicians solely on the basis of symptoms, despite the fact that clinical guidelines recommend using a spirometer to objectively measure lung volume and airway flow. A spirometer costs a few thousand dollars and can be set up fairly easily in any clinic.

"The message for patients is that if you've been diagnosed with asthma and you have not had a spirometry test, you should ask your physician for one," said Dr. Aaron. "The other important message is that asthma can be deadly, so you should never stop taking a medication without consulting a physician."

Jennifer Paterson | EurekAlert!
Further information:
http://www.ohri.ca

Further reports about: Asthma Respiratory asthma medications chronic disease

More articles from Studies and Analyses:

nachricht Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT

nachricht Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

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

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Closing the carbon loop

08.12.2016 | Life Sciences

Applicability of dynamic facilitation theory to binary hard disk systems

08.12.2016 | Physics and Astronomy

Scientists track chemical and structural evolution of catalytic nanoparticles in 3-D

08.12.2016 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>