Diagnosis of food allergy in Finland: Survey of pediatric practices

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Abstract
Food‐related symptoms are common in the first years of life, and food allergy should be diagnosed using an elimination challenge test. We surveyed Finnish hospital‐based pediatricians using a self‐completion questionnaire to ascertain the current clinical practice: 24 of the 25 pediatricians (representing 24 of 25 hospitals) so approached gave evaluable responses. Food allergies were diagnosed using a clinical elimination challenge test in patients with suspected allergy to cow's milk or cereals (wheat, rye, barley, oats). Of the 24 departments, four reported that they performed challenge in all patients before diagnosis was confirmed, and 14 performed challenge in most patients before diagnosis was confirmed. The duration of the challenge varied from 0.5 to 7 days (median 4 days). A 1‐week challenge was used in eight hospitals. The double‐blind placebo‐controlled challenge was used in seven of the hospitals, and in none routinely. Altogether, 16 of the respondents agreed that there is a need to establish clinical guidelines for the diagnosis of food allergy. In conclusion, despite a long tradition of medical education on the subject of food allergy, practices vary for its diagnosis. There is therefore a requirement for appropriate clinical guidelines.