Snorers appear more likely to develop chronic bronchitis

Jan 28, 2008

Frequent snoring appears to be associated with the development of chronic bronchitis, according to a report in the January 28 issue of Archives of Internal Medicine.

Chronic bronchitis involves inflammation of the lower airways accompanied by a persistent cough and the production of mucus or phlegm, according to background information and the article. Snoring appears more common among individuals with bronchitis.

Inkyung Baik, Ph.D., of the Korea University Ansan Hospital, Ansan, Republic of Korea, and colleagues studied 4,270 individuals (52 percent men and 48 percent women) starting in 2001 to 2003. At the beginning of the study, participants provided information on demographics, health conditions, family disease history and lifestyle, as well as details about how often they snored.

Every two years through 2006, participants were re-interviewed and were classified as developing chronic bronchitis if they reported having a cough and sputum (phlegm produced during cough) on most days for at least three months per year for at least two years but did not have an asthma diagnosis.

During four years of follow-up, 314 individuals developed chronic bronchitis. After adjusting for age, smoking and other bronchitis risk factors, individuals who snored regularly were more likely to develop bronchitis than those who did not. Compared with those who never snored, individuals who snored six five times per week or less were 25 percent more likely and those who snored six to seven times per week were 68 percent more likely to develop bronchitis. The association was strongest in individuals who had never smoked, who worked in the home or who were overweight.

“The mechanisms underlying the association between snoring and chronic bronchitis are largely unknown,” the authors write. “It has been suggested that structural or functional changes in the airway due to inflammation may cause snoring and obstructive sleep apnea syndrome. Conversely, repeated snoring vibrations may act as mechanical stresses, leading to increased inflammatory response in the upper airway.”

“Further investigations are needed to confirm the association between snoring and chronic bronchitis and to explore the mechanisms underlying the association,” they conclude.

Source: JAMA and Archives Journals

Explore further: France to receive first Ebola patient

add to favorites email to friend print save as pdf

Related Stories

Asthma through the eyes of a medical anthropologist

Feb 18, 2011

Asthma diagnosis and management vary dramatically around the world, said David Van Sickle, an honorary associate fellow at the University of Wisconsin School of Medicine and Public Health, during a presentation today at the ...

Scientists find gene linked to congenital heart defect

Dec 06, 2010

(PhysOrg.com) -- A gene that can cause congenital heart defects has been identified by a team of scientists, including a group from Princeton University. The discovery could lead to new treatments for those ...

New NIH data show gains in COPD awareness

Nov 09, 2010

The number of Americans who report being aware of chronic obstructive pulmonary disease, or COPD, increased by 4 percentage points between 2008 and 2010, but many people at risk are still unaware of the disease, according ...

Recommended for you

France to receive first Ebola patient

20 minutes ago

France on Wednesday prepared to receive its first Ebola patient, as the World Bank warned the spiralling epidemic is threatening economic catastrophe in west Africa.

US scientist: Ebola unlikely to become airborne

1 hour ago

It is unlikely that Ebola would mutate to spread through the air, and the best way to make sure it doesn't is to stop the epidemic, a top U.S. government scientist told concerned lawmakers Wednesday.

User comments : 0