Navigation Links
Study strengthens link between tobacco smoke and behavioral problems in boys with asthma
Date:12/4/2008

CINCINNATI Boys with asthma who are exposed to environmental tobacco smoke have higher degrees of hyperactivity, aggression, depression and other behavioral problems, according to researchers at Cincinnati Children's Hospital Medical Center.

In a study posted online ahead of print by the Journal of Developmental and Behavioral Pediatrics, the researchers said behavioral problems increase along with higher exposure levels, but they added even low levels of tobacco smoke may be detrimental to behavior.

"These findings should encourage us to make stronger efforts to prevent childhood exposure to tobacco smoke, especially among higher risk populations, such as children with asthma," said Kimberly Yolton, Ph.D., lead author of the study and a researcher at the Children's Environmental Health Center at Cincinnati Children's.

Interestingly, although girls in the study were on average exposed to higher levels of tobacco smoke than boys, the exposure did not lead to an increase in behavioral problems among them, investigators said. In boys, however, behavioral problems increased about two fold with each doubling in their tobacco smoke exposure, said Dr. Yolton.

There have been studies involving adults and animals pointing to a difference in tobacco smoke's behavioral impact on males and females. Even so, the Cincinnati Children's authors said additional research is needed to explain why they observed different degrees of behavioral impact among the 220 boys and girls, ages 6-12, in the study.

"The largest increase we observed was in overall behavioral problems, but it was interesting that in addition to externalizing behaviors like hyperactivity and aggression we also saw an increase in internalizing behaviors, such as depression," explained Dr. Yolton. "Few studies have found a link between tobacco smoke and depression in children."

Although no data exist to specifically explain why tobacco smoke causes behavioral problems in children with asthma, Dr. Yolton said there is "quite a bit of evidence" that nicotine in tobacco smoke affects development and functioning of the nervous system, as well as child development and behavior.

According to estimates provided by parents, children in the current study were exposed to an average of 13 cigarettes a day. Parent estimates are frequently used in research as a gauge of child tobacco smoke exposure, but the current study went a step further because parental estimates can be inaccurate, said Dr. Yolton, also an assistant professor of pediatrics at the University of Cincinnati College of Medicine.

Investigators also measured the cotinine levels in the children's blood. Cotinine is a byproduct, or metabolite, of nicotine and is often used as a biomarker to more accurately measure tobacco smoke exposure.

The researchers compared cotinine levels to behavioral patterns observed in the children during the previous two weeks. Behavioral patterns were reported by parents using the Behavioral Assessment System for Children (BASC). The BASC is a standardized survey for measuring specific behaviors like hyperactivity, anxiety, attention problems, conduct problems, depression and somatization (complaining about physical problems that have no physical explanation or basis).

Researchers also accounted for other factors that might affect child's behavior. These included socioeconomics, like a parent's education and household income, parent mental health, asthma severity and medications used. The researchers also assessed physical and nurturing qualities of the home by using a tool called the Home Observation for Measurement of Environment (HOME). The investigators also included whether mothers smoked during pregnancy, which Dr. Yolton said allowed researchers to strengthen findings related to environmental tobacco exposure.

Among 220 children in the study, 61 percent were boys, 56 percent were African American and 77 percent had moderate to severe asthma, with the rest having mild asthma. Inclusion in the study required that, other than asthma, the children have no other health problems, including mental retardation, and that they be exposed to at least five cigarettes a day. Families participating in the research were all participants in the Cincinnati Asthma Prevention Study.


'/>"/>

Contact: Nick Miller
nicholas.miller@cchmc.org
513-803-6035
Cincinnati Children's Hospital Medical Center
Source:Eurekalert

Related medicine news :

1. Penn study finds pro-death proteins required to regulate healthy immune function
2. New study shows promise in reducing surgical risks associated with surgical bleeding
3. Study, meta-analysis examine factors associated with death from heatstroke
4. Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinsons symptoms
5. Study says COPD testing is not measuring up
6. Preclinical study suggests organ-transplant drug may aid in lupus fight
7. Ability to cope with stress can increase good cholesterol in older white men, study finds
8. High alcohol consumption increases stroke risk, Tulane study says
9. Mailman School of Public Health study examines link between racial discrimination and substance use
10. Pitt study finds inequality in tobacco advertising
11. Stanford study highlights cost-effective method of lowering heart disease risks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... ... 2016 , ... PawPaws brand pet supplements owned by Whole Health ... the health of felines. The formula is all-natural and is made from Chinese herbs ... Cat Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia ...
(Date:6/25/2016)... ... 25, 2016 , ... Austin residents seeking Mohs surgery services, can now turn ... to Dr. Russell Peckham for medical and surgical dermatology. , Dr. Dorsey brings specialization ... selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey was under the direction ...
(Date:6/25/2016)... ... June 25, 2016 , ... As a lifelong Southern Californian, ... and his M.D from the David Geffen School of Medicine at UCLA. He trained ... Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program where ...
(Date:6/24/2016)... ... 2016 , ... A recent article published June 14 on E ... goes on to state that individuals are now more comfortable seeking to undergo not ... as calf and cheek reduction. The Los Angeles area medical group, Beverly Hills Physicians ...
(Date:6/24/2016)... ... 2016 , ... The Pulmonary Hypertension Association (PHA) learned during ... two significant new grants to support its work to advance research and patient ... recognizing patients, medical professionals and scientists for their work in fighting pulmonary hypertension ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... N.C. , June 24, 2016  Consumers ... decisions and regulators/payers have placed more emphasis on ... environment, patient support programs in the pharmaceutical industry ... patients, medications. Consequently, pharmaceutical companies are focusing on ... they are providing products and services that improve ...
(Date:6/24/2016)... SAN FRANCISCO, Calif. , June 24, 2016 ... GBT ), a biopharmaceutical company developing novel therapeutics ... significant unmet needs, today announced the closing of ... shares of common stock, at the public offering ... shares in the offering were offered by GBT. ...
(Date:6/24/2016)... June 24, 2016 ... announced the addition of the " Global Markets ... This report focuses ... an updated review, including its applications in various applications. ... market, which includes three main industries: pharmaceutical and biotechnology, ...
Breaking Medicine Technology: