A recent study published in JAMA Pedriatr. shows that children born outside the US have a lower prevalence of allergic disease that increases after residing in the US for ten years.

Jonathan I. Silverberg, MD, PhD, MPH; Eric L. Simpson, MD, MCR; Helen G. Durkin, PhD; Rauno Joks, MD, Prevalence of Allergic Disease in Foreign-Born American Children, JAMA Pediatr. 2013;167(6):554-560. doi:10.1001/jamapediatrics.2013.1319.

The study reports that “children born outside the United States have significantly lower prevalence of allergic disorders, including asthma, eczema, hay fever, and food allergies. However, the odds of developing allergic disease significantly increased after residing in the United States for one decade or longer.” Continue reading →