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  • Title: Frequency of food-dependent, exercise-induced anaphylaxis in Japanese junior-high-school students.
    Author: Aihara Y, Takahashi Y, Kotoyori T, Mitsuda T, Ito R, Aihara M, Ikezawa Z, Yokota S.
    Journal: J Allergy Clin Immunol; 2001 Dec; 108(6):1035-9. PubMed ID: 11742285.
    Abstract:
    BACKGROUND: Food-dependent, exercise-induced anaphylaxis (FEIAn) is classified among the physical allergies. The pathophysiology of FEIAn remains unknown, as does the frequency of FEIAn in the general population. OBJECTIVE: We sought to study the epidemiology of FEIAn, especially its frequency in junior-high-school students in Yokohama, Japan. METHODS: A questionnaire asking about the occurrence of FEIAn in school students was sent to all 145 public junior-high-school nurses in Yokohama. RESULTS: One hundred thirty-two junior-high-school nurses responded to the questionnaire, and 13 (11 boys and 2 girls) cases of FEIAn among 76,229 junior-high-school students were reported. In addition, 24 (12 boys and 12 girls) subjects with exercise-induced anaphylaxis (EIAn) were detected. From this survey, the frequency of FEIAn was 0.017% in this population, and its frequency was significantly higher in boys than in girls (P < .05). The frequency of EIAn was 0.031%, and there was no difference according to sex. Only one third of junior-high-school nurses had any knowledge of FEIAn. We also performed provocation tests in 5 of the 13 cases with FEIAn after obtaining informed consent from the students and their parents and were able to confirm the diagnosis. CONCLUSION: This study showed that FEIAn and EIAn are relatively rare diseases among junior-high-school students in Yokohama. To avoid serious outcomes, we believe it is important that not only physicians but also school nurses and teachers of physical education be aware of these diseases.
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