About three out of ten peanut allergies and nine out of ten egg allergies go away by the age of six. A long-term Australian study demonstrates this. The odds are lower in children with severe eczema or multiple allergies.
About three out of ten peanut allergies and nine out of ten egg allergies go away by the age of six. A long-term Australian study demonstrates this. The researchers found that the odds are lower in children with severe eczema or multiple food allergies. The findings were published in the Journal of Allergy and Clinical Immunology.
Scientists evaluated the data from the HealthNuts study. It is monitoring the prevalence and course of allergic disease in 5,276 children recruited for vaccination from 2007 to 2011 at the age of one. They have been tested for food allergies.
Peanut and egg allergies can go away by school age
Food allergy tests were repeated at time intervals, followed by oral food challenges or new tests for patients with new symptoms – after 2 years (eggs only), 4 years and 6 years. At the same time, the parents filled out the questionnaires.
At 1 year of age, 156 older children had a peanut allergy. In 29 percent, this disappeared at the age of 6, that is, around school age. At the age of 1, 471 babies had an egg allergy (raw egg). In 89% he disappeared at the age of 6.
Increased risk of persistent allergy
Persistent peanut allergy was more common in children who suffered from severe eczema, were allergic to at least one tree nut in addition to peanut, and developed wheals of 8 mm or more on prick test.
Persistent egg allergy was more likely in children who developed wheals of 4 mm or more on the prick test, had peanut or sesame sensitization, severe eczema, and even an allergy to fried or baked eggs.
Between the ages of 1 and 6, 0.7% of the children developed a peanut allergy and 0.09% of the children developed a raw egg allergy. At age 6, peanut allergy had an overall prevalence of 3.1% and egg allergy had an overall prevalence of 1.2%.