Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jaci.2010.06.003
Title: A population-based questionnaire survey on the prevalence of peanut, tree nut, and shellfish allergy in 2 Asian populations
Authors: Shek, L.P.-C.
Cabrera-Morales, E.A.
Soh, S.E. 
Gerez, I.
Ng, P.Z.
Yi, F.C.
Ma, S.
Lee, B.W.
Keywords: Anaphylaxis
Asia
Epinephrine autoinjectors
Food allergy
Peanut allergy
Philippines
Shellfish allergy
Singapore
Tree nut allergy
Issue Date: 2010
Citation: Shek, L.P.-C., Cabrera-Morales, E.A., Soh, S.E., Gerez, I., Ng, P.Z., Yi, F.C., Ma, S., Lee, B.W. (2010). A population-based questionnaire survey on the prevalence of peanut, tree nut, and shellfish allergy in 2 Asian populations. Journal of Allergy and Clinical Immunology 126 (2) : 324-331.e7. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jaci.2010.06.003
Abstract: Background: There has been a substantial increase in the prevalence of peanut and tree nut allergy in Western populations in the last 2 decades. However, there is an impression that peanut and tree nut allergy is relatively uncommon in Asia. Objective: To evaluate the prevalence of peanut, tree nut, and shellfish allergy in schoolchildren in 2 Asian countries (Singapore and Philippines). Methods: A structured written questionnaire was administered to local and expatriate Singapore (4-6 and 14-16 years old) and Philippine (14-16 years old) schoolchildren. Results: A total of 25,692 schoolchildren responded to the survey (response rate, 74.2%). of these, 23,425 responses fell within the study protocol's 4 to 6 and 14 to 16 year age groups and were included in the analysis. The prevalence of convincing peanut and tree nut allergy were similar in both local Singapore (4-6 years, 0.64%, 0.28%; 14-16 years, 0.47%, 0.3%, respectively) and Philippine (14-16, 0.43%, 0.33%, respectively) schoolchildren, but was higher in the Singapore expatriates (4-6 years, 1.29%, 1.12%; 14-16 years, both 1.21%, respectively; 4-6 years, expatriates vs local Singaporeans: peanut, P = .019; tree nut, P = .0017; 14-16 years, P > .05). Conversely, shellfish allergy was more common in the local Singapore (4-6 years, 1.19%; 14-16 years, 5.23%) and Philippine (14-16 years, 5.12%) schoolchildren compared with expatriate children (4-6 years, 0.55%; 14-16 years, 0.96%; P < .001). When data were pooled, respondents born in Western countries were at higher risk of peanut (adjusted odds ratios [95% CIs]: 4-6 years, 3.47 [1.35-8.93]; 14-16 years, 5.56 [1.74-17.76]) and tree nut allergy (adjusted odds ratios [95% CIs]: 4-6 years, 10.40 [1.61-67.36]; 14-16 years, 3.53 [1.0012.43]) compared with those born in Asia. Conclusion: This study substantiates the notion that peanut and tree nut allergy is relatively low in Asian children, and instead shellfish allergy predominates. Environmental factors that are yet to be defined are likely to contribute to these differences. (J Allergy Clin Immunol 2010;126:324-31.) © 2010 American Academy of Allergy, Asthma & Immunology.
Source Title: Journal of Allergy and Clinical Immunology
URI: http://scholarbank.nus.edu.sg/handle/10635/108238
ISSN: 00916749
DOI: 10.1016/j.jaci.2010.06.003
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