Navigation Links
Air pollution linked to hospitalizations for pneumonia in seniors
Date:12/23/2009

Hamilton, ON (Dec. 23, 2009) A McMaster University researcher has found the first evidence that prolonged exposure to higher levels of the pollutants found in car exhaust fumes and industrial air pollution can lead to hospitalization for pneumonia in adults aged 65 and older.

Infectious disease specialist Mark Loeb led a research team to assess the effect of long-term exposure to nitrogen dioxide and sulfur dioxide, both found in motor vehicle emissions, and fine particulate matter, found in industrial air pollution, on the risk of hospitalization for pneumonia in older adults. Loeb, a physician, is a professor in the Department of Pathology and Molecular Medicine and the Department of Clinical Epidemiology and Biostatistics of the Michael G. DeGroote School of Medicine.

The research results are to be published in the Jan. 1, 2010, issue of the American Journal of Respiratory and Critical Care Medicine.

"Our study found that among older individuals, long-term exposure to traffic pollution independently increased their risk of hospitalization for pneumonia," said Loeb, who is also the director of the Infectious Diseases Division at McMaster University. "We propose that exposure to air pollution may have increased the individuals' susceptibility to pneumonia by interfering with lung immune defenses designed to protect the lung from pathogens."

Loeb led a research team in recruiting 365 older adults from Hamilton who had been hospitalized with radiologically confirmed pneumonia between July 2003 and April 2005. Control subjects randomly selected from the same neighbourhoods as the patients were also enrolled in the study.

The research team used structured interviews to collect health data from participants and compared the two groups' exposures to nitrogen dioxide, sulfur dioxide and fine particulate matter of less than 2.5 micrometres using data from air-quality monitoring stations and land-use regression models.

The researchers found that exposure for more than 12 months to higher levels of nitrogen dioxide and fine particulate matter of less than 2.5 micrometres more than doubled the risk of hospitalization for pneumonia in adults aged 65 and older. Exposure to sulfur dioxide was not associated with an increased risk of hospitalization.

"The results of this study highlight the important health impact that long-term exposure to ambient air pollution can have on respiratory infections," Loeb said. "It also emphasizes the need to monitor emissions from vehicles, given that ground-level nitrogen dioxide is derived predominantly from traffic."

Pneumonia is a leading cause of illness and death in order adults. Rates of hospitalization for pneumonia among patients 65 year and older have increased in recent years. While the role of air pollution has been recognized as a risk factor for asthma and other respiratory diseases, few studies have been completed on the role of air pollution on pneumonia hospitalization in older adults.


'/>"/>

Contact: Veronica McGuire
vmcguir@mcmaster.ca
90-552-591-402-2169
McMaster University
Source:Eurekalert

Related medicine news :

1. Air pollution linked to cardiovascular risk indices in healthy young adults
2. High pollution linked to poor lung function growth in children in Mexico City
3. Link Between Air Pollution, Stroke Gets Clearer
4. Los Angeles Port Pollution, Intl Trade & Goods Movement Conference This Weekend
5. EPA Plan to Evade Required Cuts in Mercury Pollution Challenged in Court by States, Tribes, Health and Environmental Groups
6. Traffic Pollution Hurts Asthmatic Kids Lungs
7. Pollution shrinks fetus size: Brisbane study finds
8. Smallest Air Pollution Particles Hurt Heart Most
9. Environmental pollution and diabetes may be linked
10. Sea salt worsens coastal air pollution: study
11. Air pollution affects respiratory health in children with asthma
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... June 27, 2016 , ... TherapySites, ... today its affiliation with Tennessee Counseling Association. This new relationship allows ... the Tennessee Counseling Association, adding exclusive benefits and promotional offers. , "TCA is ...
(Date:6/27/2016)... NY (PRWEB) , ... June 27, 2016 , ... ... using cutting edge technology to revolutionize the emergency ambulance transport experience for the ... are aware of how Uber has disrupted the taxi industry through the use ...
(Date:6/26/2016)... ... June 27, 2016 , ... Quality metrics are proliferating in cancer ... they remain in the eye of the beholder, according to experts who offered insights ... American Journal of Managed Care. For the full issue, click here . , ...
(Date:6/26/2016)... Aliso Viejo, California (PRWEB) , ... June 26, 2016 , ... ... for Final Cut Pro X. , "Film editors can give their videos a whole ... artistically," said Christina Austin - CEO of Pixel Film Studios. , ProSlice Levels ...
(Date:6/26/2016)... ... June 26, 2016 , ... Brent Kasmer, a legally blind and certified personal trainer is helping ... fitness app. The fitness app plans to fix the two major problems leading the fitness ... size fits all type program , They don’t eliminate all the reasons people ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- Bracket , a leading clinical trial technology and ... platform, Bracket eCOA (SM) 6.0, at the 52 nd ... 2016 in Philadelphia , Pennsylvania.  A demonstration ... of its kind to fully integrate with RTSM, will be ... is a flexible platform for electronic clinical outcomes assessments that ...
(Date:6/23/2016)... and INDIANAPOLIS , June ... receiving a Lilly Diabetes Tomorrow,s Leaders Scholarship is any ... scholarship winners, announced today online at www.diabetesscholars.org ... type 1 diabetes stand in the way of academic ... supported the Foundation,s scholarship program since 2012, and continues ...
(Date:6/23/2016)... LONDON , June 23, 2016 ... environments  Oticon , industry leaders in ... the launch of Oticon Opn ™, the world,s ... world of possibilities for IoT devices.      ... Opn, Oticon introduces a number of ,world firsts,: ...
Breaking Medicine Technology: