title: [Oral provocation tests for adverse reactions to food].
abstract: BACKGROUND
  Diagnosis of adverse reactions to food is difficult, but important. The prevalence of perceived adverse reactions is high, especially in small children.
  
  
  METHODS
  72 children 0-17 years of age hospitalised in our clinic for investigation of adverse food reactions. Oral provocation tests were performed open, blind and double blind.
  
  
  RESULTS
  41 (20 %) positive provocation tests were registered, 31 by nurses and doctors only, ten solely by parents. Eggs and cow's milk were the most common causes of positive reactions, fish and wheat gave somewhat less reactions. Of the positive provocations, 19 had different outcomes from what was expected; 89 % of the children could have one or more foods added to their diet, wholly or in part.
  
  
  CONCLUSIONS
  Systematic use of oral provocation tests may be of use to eliminate unnecessary diets in children.
authors.affiliation: Barneklinikken, Voksentoppen, Rikshospitalet, 0027 Oslo.
authors.forename: Anne K
authors.initials: AK
authors.lastname: Søyland Wasenius
authors.forename: Ragnhild
authors.initials: R
authors.lastname: Halvorsen
mesh_terms: D002648:Child; D002675:Child, Preschool; D004311:Double-Blind Method; D005260:Female; D005512:Food Hypersensitivity / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D008297:Male