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:2/8/2016)... ... ... has struggled to quit smoking, a man who has struggled with hair loss – Craig ... problems – and he did. Now Nabat, a serial entrepreneur featured as the October 2015 ... the world and better people's lives. His own experience with nicotine addiction led to the ...
(Date:2/8/2016)... ... February 08, 2016 , ... Tingley ... into Canada to provide its range of unique and advantaged protective solutions ... City that will provide bilingual customer service and marketing support. A new distribution ...
(Date:2/8/2016)... ... February 08, 2016 , ... Local insurance agency Dennis Fuller ... area, has initiated a fundraiser for a two year old little girl named ... Christmas. To support this beautiful child who is facing life’s journey without her ...
(Date:2/8/2016)... ... February 08, 2016 , ... Remember the old saying ... , According to Perry A~, author of “Calcium Bentonite Clay” the health benefits of ... in balancing and detoxifying the body. , A former motivational speaker, Perry A~ has ...
(Date:2/8/2016)... (PRWEB) , ... February 08, 2016 , ... Discover the ... visit over 1,400 booths and 700 companies. Attendees also get to see the ... Colorado Garden & Home Show , at the Colorado Convention Center - 700 ...
Breaking Medicine News(10 mins):
(Date:2/8/2016)... Feb.8, 2016 Alzheimer Diagnostic Tests - ... Medical Devices sector report , "Alzheimer Diagnostic ... an overview of Alzheimer Diagnostic Tests currently in ... on the pipeline products with comparative analysis of ... report reviews major players involved in the pipeline ...
(Date:2/8/2016)... Feb. 8, 2016 CBG Technologies, a ... Series Solvent Recycling Systems, specifically designed for precision ... with new and existing vapor degreasers, parts washers ... solvent through continuous recycling and recovers 100% of ... --> Precision parts manufacturers benefit ...
(Date:2/8/2016)... February 8, 2016 --> ... research report "Ablation Technologies Market by Product (Radiofrequency, Ultrasound, ... Management, Cosmetic Surgery, Ophthalmology, Gynecology) - Global Forecasts to ... market over the forecast period of 2015 to 2020. ... 2020, at CAGR of 10.5% from 2015 to 2020. ...
Breaking Medicine Technology: