Featured Research

from universities, journals, and other organizations

Smokers Pneumonia Risk Three Times Greater

Date:
August 16, 1999
Source:
American College Of Chest Physicians
Summary:
Men and women who smoked more than 20 cigarettes per day were almost three times more likely to acquire pneumonia than persons who never smoked, according to a study in the August issue of CHEST.

Men and women who smoked more than 20 cigarettes per day were almost three times more likely to acquire pneumonia than persons who never smoked, according to a study in the August issue of CHEST.

Related Articles


Writing in the monthly peer-reviewed journal of the American College of Chest Physicians, Carlos A. Gonzalez, Ph.D., of the Institute of Epidemiological and Clinical Research, Hospital of the Consorci Sanitari de Mataro, Barcelona, Spain, along with three associates, studied 112 men and 93 women who had contracted community-acquired pneumonia. Among the patients with pneumonia, almost 65 percent were current smokers of cigarettes. Among the control group of 475 persons who did not have pneumonia, slightly over 56 percent were current smokers.

"The number of cigarettes smoked per day and the life-time pack-years showed a positive dose-response relationship, with a significant trend," said Dr. Gonzalez. Smokers who smoked more than 38 pack-years of cigarettes had a risk of getting pneumonia of over 3.15 to 1. The risk of ex-smokers was similar to current smokers, about 2.14 to 1. After 5 years of no smoking, the risk of acquiring pneumonia was reduced."

According to the researchers, the physical and chemical properties of cigarette smoke causes oxidative stress in people and alterations in the responsiveness of inflammatory cells.

The authors estimate that approximately 1 out of every 3 cases in these adults could have been avoided if no one in the population had smoked.

The investigators' results showed no difference in risk associated with the use of filter cigarettes, cigarettes made with darker tobacco, or the individual's depth of inhaling.

The study was conducted in a mixed residential-industrial area of Barcelona containing 74,610 inhabitants over 14 years of age. The researchers selected this area because all physicians who had first contact with patients with symptoms of pneumonia agreed to collaborate on the study. The physicians in public and private health care facilities covered 95.2 percent of this population.

"We feel we had an advantage in that all community-acquired pneumonia cases occurring in the entire population of this defined area over a two-year period were included,." said Dr. Gonzalez. "Thus, we avoided selection bias which might have been associated with hospitalized patients or with other selected groups of patients with pneumonia."

In Spain, the estimated prevalence of smoking among men and women over age 15 was 48 percent for males and 25 percent for females. Dr. Gonzalez characterized Spain's smoking prevalence as "middle-high" among other developed nations.

Trained physicians and nurses elicited study data from participants in their homes. Self-reported factors included weight, height, alcohol consumption, living conditions, medical history, and medical treatments during the previous year. Information on smoking was collected in separate sections for consumption of cigarettes, cigars, and pipes.

CHEST is published by the American College of Chest Physicians (ACCP), which represents 15,000 members who provide clinical, respiratory, and cardiothoracic patient care in the U.S. and throughout the world.


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. "Smokers Pneumonia Risk Three Times Greater." ScienceDaily. ScienceDaily, 16 August 1999. <www.sciencedaily.com/releases/1999/08/990816073437.htm>.
American College Of Chest Physicians. (1999, August 16). Smokers Pneumonia Risk Three Times Greater. ScienceDaily. Retrieved October 31, 2014 from www.sciencedaily.com/releases/1999/08/990816073437.htm
American College Of Chest Physicians. "Smokers Pneumonia Risk Three Times Greater." ScienceDaily. www.sciencedaily.com/releases/1999/08/990816073437.htm (accessed October 31, 2014).

Share This



More Health & Medicine News

Friday, October 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Melafind: Spotting Melanoma Without a Biopsy

Melafind: Spotting Melanoma Without a Biopsy

Ivanhoe (Oct. 31, 2014) The MelaFind device is a pain-free way to check suspicious moles for melanoma, without the need for a biopsy. Video provided by Ivanhoe
Powered by NewsLook.com
Battling Multiple Myeloma

Battling Multiple Myeloma

Ivanhoe (Oct. 31, 2014) The answer isn’t always found in new drugs – repurposing an ‘old’ drug that could mean better multiple myeloma treatment, and hope. Video provided by Ivanhoe
Powered by NewsLook.com
Chronic Inflammation and Prostate Cancer

Chronic Inflammation and Prostate Cancer

Ivanhoe (Oct. 31, 2014) New information that is linking chronic inflammation in the prostate and prostate cancer, which may help doctors and patients prevent cancer in the future. Video provided by Ivanhoe
Powered by NewsLook.com
Sickle Cell: Stopping Kids’ Silent Strokes

Sickle Cell: Stopping Kids’ Silent Strokes

Ivanhoe (Oct. 31, 2014) Blood transfusions are proving crucial to young sickle cell patients by helping prevent strokes, even when there is no outward sign of brain injury. Video provided by Ivanhoe
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