Children who attend school near concentrated animal feeding operations may be at a higher risk for asthma, according to a new
"Previous research has shown increased rates of asthma among children living in rural areas of
Researchers surveyed the parents of kindergarten through fifth-grade students attending two
Study results indicate a significant difference in the prevalence of physician-diagnosed asthma between the two schools: 12 children (19.7 percent) from the study school located near a CAFO and 18 children (7.3 percent) from the control school. The overall rate of physician-diagnosed asthma reported for
Using the broadest definition of asthma (physician diagnosis, asthma-like symptoms or asthma medication use) the prevalence rate was 24.6 percent at the study school, compared to 11.7 percent at the control school.
Although results also showed that children in the study school located near a CAFO were more likely to have a parent who smoked, which is also a risk factor for asthma. The significance of parental smoking diminished when analyzed with other variables such as pet ownership, age and residence in a rural area or on a farm.
Kline stressed caution in the study results. "Since different physicians were diagnosing asthma among the two groups, it's possible that one group may have been more or less likely to receive an asthma diagnosis for similar symptoms," he says.
You can find the study online at www.chestjournal.org
Porkmag.com, Science Daily