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    Spray Cleaners May Up Asthma Risk

    Study Sees Asthma Link for Home Users of Chemical Cleaning Sprays
    By
    WebMD Health News
    Reviewed by Louise Chang, MD

    Oct. 12, 2007 -- Using spray home cleaning products, even as little as once a week, may increase an adult's risk for developing asthma symptoms, a new study shows.

    Frequent use of aerosolized chemical cleaners has previously been linked to asthma in cleaning professionals. But the new study is the first to examine the impact of exposure to spray cleaners on home users.

    Researchers concluded that use of spray household cleaners may be an important contributor to asthma in adults.

    The risk of developing asthma increased with the frequency of use and the number of different products used, but on average regular use of spray cleaners and air fresheners was found to be associated with a 30% to 50% increase in asthma risk.

    Researcher Jan-Paul Zock, PhD, says this finding means that as many as one in seven asthma cases in adults may be caused by the use of spray cleaners.

    "These findings must be confirmed, but it is clear that people need to use caution when they use these products," he says.

    Cleaners and Asthma

    Zock and colleagues used data from the European Community Respiratory Health Survey, one of the largest population-based studies of airway diseases ever conducted.

    The study included more than 3,500 adults across 22 centers located in 10 European countries who reported doing the bulk of cleaning in their homes.

    None of the participants -- two-thirds of whom were women -- had asthma when they entered the study, but roughly 6% had developed asthma symptoms after an average follow-up of nine years.

    The subjects were asked at follow-up interviews how often they used 15 types of cleaning products.

    The use of cleaning sprays at least once a week was associated with a roughly 50% increase in asthma symptoms or use of asthma medication and a roughly 40% increase in wheezing.

    Use of spray cleaners and air fresheners at least four days a week was associated with a doubling of the risk of physician-diagnosed asthma.

    The use of non-aerosolized cleaning products and air fresheners was not linked to a rise in asthma risk.

    The study is published in the October issue of the American Journal of Respiratory and Critical Care Medicine.

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