Methods: Retrospective chart reviews and questionnaires were done in food-allergic children at King Chulalongkorn Memorial Hospital, Bangkok, Thailand
Results: Fifty food allergic children were enrolled. Seventy-eight percent were male. Mean age was 5.3 +/- 3.2 years. Thirty-two percent had multiple food allergies. Overall cost was 1,953 US dollar per person per year. Direct medical cost was 1,112 US dollar per person per year and direct non-medical cost was 841 US dollar per person per year. Direct medical cost can be divided into in-patient visit 62 %, unscheduled out-patient visit 9.4 %, office visit 17.4 % and emergency room visit 9.4%. The high cost for unscheduled out-patient visit and emergency room visit reflected the accidental exposure and acute food reaction in the studied population.
Conclusions: Food allergy is a burden on healthcare resources as shown by this study. The high cost of unscheduled out-patient visit and emergency room visit can be reduced by patient education and proper allergen avoidance.