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Changes in Weather May Trigger Children’s Asthma

Asthma image

Changes in humidity and temperature result in an increase in Emergency Department (ED) visits for pediatric asthma exacerbation, according to a report published in Annals of Allergy, Asthma & Immunology.

“We found a strong relationship between temperature and humidity fluctuations with pediatric asthma exacerbations, but not barometric pressure,” says Dr. Nana A. Mireku, an allergist at Dallas Allergy Immunology private practice in Dallas, TX.

A 10 percent daily increase in humidity on a day or two before ED admission was associated with approximately one additional ED visit for asthma. Between-day changes in humidity from two to three days prior to admission were also associated with more ED visits. Daily changes in temperature on the day of or the day before admission increased ED visits, with a 10 degree Fahrenheit increase being association with 1.8 additional visits.


Source: Annals of Allergy, Asthma & Immunology,

This article was originally published in Coping® with Allergies & Asthma magazine, September/October 2009.