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Children can be Protected from Secondhand Smoke by Smoke-Free Air Laws
The children living in non-smoking homes in U.S. counties with smoke-free laws had 39% lower prevalence of cotinine in their blood, an indicator of tobacco smoke exposure, compared to those living in counties with no smoke-free laws. Children living in homes with smokers exhibited little or no benefit from the smoke-free laws.
The study appears in the June 7, 2010 advance online edition of the journal Pediatrics.
"The findings suggest that smoke-free laws are an effective strategy to protect both children and adults from exposure to secondhand smoke. In addition, interventions designed to reduce or prevent adults from smoking around children are needed," said Melanie Dove, who received her doctorate in environmental health at HSPH in 2010 and led the study.
The HSPH researchers examined data from the 1999-2006 National Health and Nutrition Examination Survey (NHANES), a cross-sectional survey designed to monitor the health and nutritional status of the U.S. population. They analyzed the cotinine levels in 11,486 nonsmoking youngsters, aged 3-19 years, from 117 counties, both with and without exposure to secondhand smoke in the home.
In addition to a 39% lower prevalence of detectable cotinine, the researchers also found that children in non-smoking homes had 43% lower mean cotinine levels.
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More News on: Smoking And Cancer, Smoking And Tobacco, Development Milestone, Height and Weight-Kids, Diet Lifestyle and Heart Disease, Cigarette Smoking - A Silent Killer
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