Wisconsin childern exposed to too much secondhand smoke, research shows

Jul 30, 2010
Wisconsin childern exposed to too much secondhand smoke, research shows

(PhysOrg.com) -- Wisconsin children are exposed to secondhand smoke at a rate 40 percent higher than the national average, according to research published in the July issue of Pediatrics.

The study, conducted by researchers from the National Cancer Institute, found that 10.5 percent of Wisconsin age 17 and younger are regularly exposed to . That is the fifth-highest level of secondhand-smoke exposure in the nation.

A companion finding shows that 39 percent of Wisconsin youngsters who live with a smoker are exposed to secondhand smoke, second highest in the nation.

Based on the data in the report, University of Wisconsin Carbone Cancer Center researchers estimated that nearly 139,000 children in Wisconsin are regularly exposed to secondhand smoke in their homes.

The epidemiologists said they were surprised by the research findings because Wisconsin's high rate of child exposure is not associated with a similarly high smoking prevalence rate among adults. In 2007, Wisconsin had the 25th-lowest adult smoking rate in the nation (19.6 percent).

All of the other states with high rates of child exposure had high adult-smoking prevalence rates and no state law pertaining to smoke-free public places. Those with low exposure rates among children had low levels of adult smoking, as well as state laws requiring smoke-free public places.

Researchers also found that Wisconsin children were exposed to smoke in 39 percent of homes with a smoker, second only to West Virginia (41 percent). Cold weather and reluctance to smoke outside does not seem to explain the high rate. Other cold-weather states such as Minnesota, North and South Dakota have exposure rates that are about half the rate in Wisconsin.

Childhood exposure to secondhand smoke causes respiratory problems, higher risk for , respiratory infections, ear problems and . It is also strongly associated with behavioral problems in boys and most recently identified with substantially increased risk of lung cancer among people who have never smoked.

"While the level of secondhand-smoke exposure has declined substantially in the last decade, there is a continuing need to educate parents and caregivers of the immediate and long-term health effects of exposure to secondhand smoke," said Dr. Nathan Jones of the UW Carbone Cancer Center's Tobacco Surveillance and Evaluation group. "Parents and caregivers who smoke should be encouraged and assisted in quitting, rather than recommended to 'take it outside.' We need to get a better understanding of why exposure is so high in Wisconsin and how to address this public health problem with often long-term and serious consequences."

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