Even though fewer U.S. teens are smoking, secondhand smoke remains a big problem for them, a government study found.
Earlier studies on teens and secondhand smoke in specific places, such as cars or indoors, indicate that the problem has declined in recent years but the new research suggests it’s still affecting millions of kids.
“These findings are concerning because the U.S. Surgeon General has concluded that there is no safe level of secondhand smoke exposure,” said lead author Israel Agaku, a researcher at the Centers for Disease Control and Prevention,
Secondhand smoke has been linked with several illnesses in children, including breathing problems, ear infections, bronchitis and pneumonia. In adults, it has been linked with heart disease and lung cancer.
The study results are based on a national survey of more than 17,000 middle school and high school kids. Exposure was defined as being around tobacco smoke at least once within the past week.
Nearly 1 in 4 nonsmokers who reported any exposure said they were around tobacco smoke daily. Settings included home, school, cars and public places. It’s not clear how many had only brief exposure.
The study was published online Monday in the journal Pediatrics.
CDC data show that youth smoking has fallen steadily in recent years, reaching about 9 percent among high schoolers in 2014. At least 26 states have smoke-free laws affecting indoor public places and worksites, and more than 80 percent of U.S. homes have no-smoking rules.
The researchers say the study results show efforts are needed to expand smoke-free zones.
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