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Does Being Born in the US Increase Risk of Allergic Disease?

A new study in JAMA Pediatrics investigates “the association between US birthplace and prevalence of childhood allergic disease” and the effects of prolonged US residence on allergic disease. “Children born outside the United States had significantly lower odds of any atopic disorders than those born in the United States (logistic regression OR, 0.48; 95% CI, 0.38-0.61), including ever-asthma (0.53; 0.39-0.72), current-asthma (0.34; 0.23-0.51), eczema (0.43; 0.30-0.61), hay fever (0.39; 0.27-0.55), and food allergies (0.60; 0.37-0.99) … Children born outside the United States whose parents were also born outside the United States had significantly lower odds of any atopic disorders than those whose parents were born in the United States (P = .005).”

Read it in JAMA Pediatrics.