HealthDay News — Occupational disinfectant use by pregnant women is associated with increased risks for asthma and eczema in their offspring, according to a study published online in Occupational & Environmental Medicine.

Reiji Kojima, MD, PhD, from the University of Yamanashi in Chuo, Japan, and colleagues used data from 78,915 mother/child pairs recruited between January 2011 and March 2014 to examine whether occupational disinfectant use during pregnancy was associated with the development of allergic disease in offspring at 3 years.

The researchers found that participants who used disinfectant every day had a significantly higher risk for asthma in their offspring compared with those who never used disinfectants (adjusted odds ratios, 1.18 and 1.26 for 1 to 6 times per week and for every day, respectively). Similar associations were seen for disinfectant exposure with eczema risk (adjusted odds ratios, 1.16 and 1.29 for one to 6 times per week and for every day, respectively). A significant exposure-dependent relationship was seen. No significant associations were seen between disinfectant use and food allergies.

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“As disinfectants are an effective tool in the prevention of infectious diseases, further research into the underlying mechanisms is warranted,” the authors write.

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