Navigation Links
Exposure to tobacco smoke in childhood home associated with early emphysema in adulthood
Date:12/28/2009

December 28, 2009 -- Children regularly exposed to tobacco smoke at home were more likely to develop early emphysema in adulthood. This finding by researchers at Columbia University's Mailman School of Public Health suggests that the lungs may not recover completely from the effects of early-life exposures to tobacco smoke (ETS). The study is published in the December 2009 American Journal of Epidemiology.

This population-based research is the first to examine the association of childhood ETS with early emphysema by CT scan in nonsmokers. Approximately half of the participants in this large multiethnic cohort had at least one regular cigarette smoker in their childhood home. Participants with more childhood ETS exposure had more emphysema-like lung pixels; an average of 20% of scan pixels were emphysema-like for those who lived with two or more smokers as a child, compared with 18% for those who lived with one regular smoker, or 17% for those who said that they did not live with a regular inside smoker as a child.

The researchers studied CT scans of 1,781 non-smokers without clinical cardiovascular disease recruited from six communities in the United States, including northern Manhattan and the Bronx, New York. Those reporting childhood ETS exposure were somewhat younger, with an average age of 61; were more likely to be non- Hispanic white; and less likely to have been born outside the United States. These differences were statistically controlled in the analyses.

"We were able to detect a difference on CT scans between the lungs of participants who lived with a smoker as a child and those who did not," observed Gina Lovasi, PhD, MPH, assistant professor of epidemiology at Columbia's Mailman School of Public Health. "Some known harmful effects of tobacco smoke are short term, and this new research suggests that effects of tobacco smoke on the lungs may also persist for decades."

Previous studies have found evidence that childhood ETS exposure affects perinatal and childhood health outcomes, and that adult exposure may affect adult respiratory health outcomes, including lung function and respiratory symptoms.

Although childhood ETS was not associated with adult lung function in this healthy population, this does not contradict the results for early emphysema, since airflow obstruction and anatomic damage are theoretically and clinically distinguishable. "However, emphysema may be a more sensitive measure of damage compared with lung function in this relatively healthy cohort,"

Dr. Lovasi notes. Combined emphysema and chronic obstructive pulmonary disease are projected to become the third leading cause of death worldwide by 2020.

The exposure information in this study does not provide information on the timing of ETS exposure during childhood, making it difficult to distinguish as exposure in utero. "The association between childhood ETS and early emphysema among participants whose mothers did not smoke, suggests that the effect we are detecting is for smoke exposure in the home during childhood rather than in utero exposure alone," observed Dr. Lovasi.


'/>"/>

Contact: Stephanie Berger
sb2247@columbia.edu
212-305-4372
Columbia University's Mailman School of Public Health
Source:Eurekalert

Related medicine news :

1. Lead Exposure May Affect Mental Health
2. Moms Exposure to Microbes Lowers Allergies in Kids
3. Smoking Exposure Now Linked to Colon, Breast Cancers
4. Childhood Lead Exposure Causes Permanent Damage: Study
5. Childhood lead exposure causes permanent brain damage
6. Childhood Lead Exposure Causes Permanent Brain Damage
7. Can Exposure to Low Oxygen Levels Benefit Heart Failure Patients?
8. Unindicated CT series result in unnecessary radiation exposure for patients
9. Exposures to metals and diesel emissions in air linked to respiratory symptoms in children
10. Smoking During Pregnancy, Lead Exposure Raise ADHD Risk in Kids
11. Pilot study relates phthalate exposure to less-masculine play by boys
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... ... December 02, 2016 , ... Mediaplanet’s ... ostomy patients, standing as living proof that attitude and determination can combine into ... issues that spike around the holidays. This campaign will offer patients a new-found ...
(Date:12/2/2016)... ... 02, 2016 , ... Mediaplanet is proud to announce the ... the innovative treatments, therapeutic technologies, and revolutionized nutrition that are helping patients and ... 6 years in the last 3 decades,” says Dr. Valentine Fuster, a world-renowned ...
(Date:12/2/2016)... (PRWEB) , ... December 02, 2016 , ... ... veterinarian diagnostic imaging systems and the first company to offer robotic ... a Heart at their tradeshow booth # 941 for the American Association of ...
(Date:12/2/2016)... Abilene, Texas (PRWEB) , ... December 02, 2016 , ... ... article that delves into how this current generation fits into Bible Prophecy. Yisrayl says ... lists various facts pointing to this conclusion, showing how the details line up exactly ...
(Date:12/2/2016)... , ... December 02, 2016 , ... ... meals to needy individuals and families from eight different sites throughout Miami-Dade and ... Day. Over 1,000 volunteers worked very hard on Thanksgiving morning by putting together ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... YORK , December 2, 2016 ... Braces & Support) is Expected to Gain a Significant Market ... to Orthopedic Ailments  ... , According to ... Study on Medical Implants Sterile Packaging: Clamshell Product Type Segment ...
(Date:12/2/2016)... On Thursday, the NASDAQ Composite and ... the Dow Jones Industrial Average managed to stay in green. ... which prompted Stock-callers this morning to look at the performances ... NUVA ), Smith & Nephew PLC (NYSE: SNN ... Cesca Therapeutics Inc. (NASDAQ: KOOL ). You can ...
(Date:12/2/2016)... -- The concept of rare diseases and the idea that ... has been taking shape in Europe ... initiatives related to orphan medicinal products have been emerging at ... states individually. Many member states in the EU have led ... medicinal products, the result of which took the shape of ...
Breaking Medicine Technology: