Featured Research

from universities, journals, and other organizations

Involuntary Smoke Exposure Affects Asthma Severity Among Children

Date:
August 19, 2002
Source:
American College Of Chest Physicians
Summary:
Children with high levels of tobacco smoke exposure are more likely to have moderate or severe asthma, says a study conducted by the Centers for Disease Control and Prevention. While it has long been known that involuntary exposure to environmental tobacco smoke (ETS) is linked to respiratory infections, middle ear disease and asthma, this study confirms that children with asthma who are exposed to ETS are more likely to have increased respiratory symptoms, increased school absences and decreased lung function.

NORTHBROOK, IL (August 15, 2002) -- Children with high levels of tobacco smoke exposure are more likely to have moderate or severe asthma, says a study conducted by the Centers for Disease Control and Prevention. While it has long been known that involuntary exposure to environmental tobacco smoke (ETS) is linked to respiratory infections, middle ear disease and asthma, this study confirms that children with asthma who are exposed to ETS are more likely to have increased respiratory symptoms, increased school absences and decreased lung function.

The study, which is reported in the August edition of CHEST, the peer-reviewed journal of the American College of Chest Physicians, looked at 523 children aged four through 16 years who had physician-diagnosed asthma. Using the biomarker cotinine, a nicotine metabolite that accumulates in the blood and urine following tobacco smoke inhalation, children were classified into ETS exposure groups to determine the indicators of asthma severity among children with high and low levels of tobacco smoke exposure.

"Many studies have demonstrated that smoke exposure is harmful for children with asthma, and studies also have used cotinine levels to determine worsened asthma severity in children exposed to tobacco smoke," said lead study author David M. Mannino, MD, FCCP. "What makes this study unique is that it is nationally representative and uses serum cotinine levels to document exposure."

Children with a greater exposure to tobacco smoke were significantly more likely to have more severe asthma, as indicated by increased symptoms of cough and wheeze, an increased number of respiratory illnesses, and lung function that was 8 percent lower than asthmatic children without smoke exposure.

Data for the study was taken from the Third National Health and Nutrition Examination Survey (NHANES III), a United States-wide health study. Of the analytic sample, 78.6 percent of the children had mild asthma, 6.8 percent had moderate asthma, and 14.6 percent of the children had severe asthma. Asthma severity was based on the frequency of symptoms and respiratory illnesses. A greater proportion of asthmatic children aged four through six had high blood cotinine concentrations than older children.

"The results of this study are not surprising," said ACCP President Sidney Braman, MD, FCCP. "What is shocking is that these 523 children represent approximately 4.3 million U.S. children with asthma, making the no-smoking message to parents and caretakers of children with asthma even more compelling."

CHEST is a peer-reviewed journal published by the ACCP. It is available online each month at http://www.chestjournal.org. ACCP represents more than 15,000 members who provide clinical, respiratory, and cardiothoracic patient care in the U.S. and throughout the world. ACCP's mission is to promote the prevention and treatment of diseases of the chest through leadership, education, research and communication.


Story Source:

The above story is based on materials provided by American College Of Chest Physicians. Note: Materials may be edited for content and length.


Cite This Page:

American College Of Chest Physicians. "Involuntary Smoke Exposure Affects Asthma Severity Among Children." ScienceDaily. ScienceDaily, 19 August 2002. <www.sciencedaily.com/releases/2002/08/020819070643.htm>.
American College Of Chest Physicians. (2002, August 19). Involuntary Smoke Exposure Affects Asthma Severity Among Children. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2002/08/020819070643.htm
American College Of Chest Physicians. "Involuntary Smoke Exposure Affects Asthma Severity Among Children." ScienceDaily. www.sciencedaily.com/releases/2002/08/020819070643.htm (accessed September 30, 2014).

Share This



More Health & Medicine News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How 'Yes Means Yes' Defines Sexual Assault

How 'Yes Means Yes' Defines Sexual Assault

Newsy (Sep. 29, 2014) Aimed at reducing sexual assaults on college campuses, California has adopted a new law changing the standard of consent for sexual activity. Video provided by Newsy
Powered by NewsLook.com
Scientists May Have Found An Early Sign Of Pancreatic Cancer

Scientists May Have Found An Early Sign Of Pancreatic Cancer

Newsy (Sep. 29, 2014) Researchers looked at 1,500 blood samples and determined people who developed pancreatic cancer had more branched chain amino acids. Video provided by Newsy
Powered by NewsLook.com
Colo. Doctors See Cluster of Enterovirus Cases

Colo. Doctors See Cluster of Enterovirus Cases

AP (Sep. 29, 2014) Doctors at the Children's Hospital of Colorado say they have treated over 4,000 children with serious respiratory illnesses since August. Nine of the patients have shown distinct neurological symptoms, including limb weakness. (Sept. 29) Video provided by AP
Powered by NewsLook.com
Dr.'s Unsure of Cause of Fast-Spreading Virus

Dr.'s Unsure of Cause of Fast-Spreading Virus

AP (Sep. 29, 2014) Doctors at the Children's Hospital of Colorado say they have treated over 4,000 children with serious respiratory illnesses since August. Nine of the patients have shown distinct neurological symptoms, including limb weakness. (Sept. 29) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins