Asthma :: Household cleaning & spray cleaners linked to asthma
Household cleaning and home spray cleaners increase the risk of developing asthma by more than fifty percent, revealed by European researchers, first to investigate the effects of cleaning products on occasional users rather than occupational users, in a new study in Europe.
This epidemiological study appeared in the second issue for October of the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine.
“Frequent use of household cleaning sprays may be an important risk factor for adult asthma,” wrote lead author Jan-Paul Zock, Ph.D., of the Centre for Research in Environmental Epidemiology at the Municipal Institute of Medical Research in Barcelona, Spain.
The investigators used baseline data from the first phase of the European Community Respiratory Health Survey (ECRHS I), one of the world's largest epidemiologic studies of airway disease, and interviews conducted in the follow-up phase, ECRHS II. Altogether, the study included more than 3,500 subjects across 22 centers in 10 European countries. Subjects were assessed for current asthma, current wheeze, physician-diagnosed asthma and allergy at follow-up, which took place an average of nine years after their first assessment. They were also asked to report the number of times per week they used cleaning products.
Two-thirds of the study population who reported doing the bulk of cleaning were women, about six percent of whom had asthma at the time of follow-up. Fewer than ten percent of them were full-time homemakers.
The risk of developing asthma increased with frequency of cleaning and number of different sprays used, but on average was about thirty to fifty percent higher in people regularly exposed to cleaning sprays than in others. The researchers found that cleaning sprays, especially air fresheners, furniture cleaners and glass-cleaners, had a particularly strong effect.
The research may have also significant implications for public health. “The relative risk rates of developing adult asthma in relation to exposure to cleaning products could account for as much as 15 percent, or one in seven of adult asthma cases,” wrote Dr. Zock.
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