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Journal Information
Vol. 45. Issue 2.
Pages 127-133 (March - April 2017)
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Vol. 45. Issue 2.
Pages 127-133 (March - April 2017)
Original Article
DOI: 10.1016/j.aller.2016.04.017
Prevalence of oral allergy syndrome in children with allergic diseases
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M. Bedolla-Barajasa,
Corresponding author
drmbedbar@gmail.com

Corresponding author.
, A. Kestler-Gramajob, G. Alcalá-Padillab,d, J. Morales-Romeroc
a Servicio de Alergia e Inmunología Clínica, Nuevo Hospital Civil de Guadalajara “Dr. Juan I. Menchaca”, Salvador de Quevedo y Zubieta No. 750, Colonia La Perla, Guadalajara, Jalisco, C. P. 44340, Mexico
b Servicio de Alergología e Inmunología Clínica, Hospital Civil de Guadalajara “Fray Antonio Alcalde”, Coronel Calderón No. 777, Colonia El Retiro, Guadalajara, Jalisco, C. P. 44280, Mexico
c Instituto de Salud Pública, Universidad Veracruzana, Av. Luis Castelazo Ayala s/n., Colonia Industrial Ánimas, Xalapa, Veracruz, C. P. 91190, Mexico
d Centro Universitario en Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada No. 950, Colonia Independencia Oriente, Guadalajara, Jalisco, C.P. 44340, Mexico
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Tables (5)
Table 1. Description of the patients, n=267.
Table 2. Clinical manifestations of the oral allergy syndrome in children, n=24.
Table 3. Frequency of sensitisation to allergens in children.
Table 4. Frequency of sensitisation to foods established following the skin prick-by-prick test in children with oral allergy syndrome.
Table 5. Association between pollen and oral allergy syndrome adjusted for gender and family atopy.
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Abstract
Introduction

The oral allergy syndrome (OAS) is a particular type of food allergy rarely explored in the paediatric population that is already considered an adult problem.

Objective

Identify the prevalence of OAS, symptoms and pollen species associated with its presence in children affected by allergic diseases.

Methods

A cross-sectional study was conducted. Consecutive sampling included children from 6 to 14 years who needed allergy treatment for the first time. A structured questionnaire was carried out to collect demographic and clinical data and history of OAS. Besides sensitisation to various allergens, the skin prick-by-prick test was performed to corroborate sensitisation to food related to OAS. Prevalence of OAS and its association with pollens was established following the covariate adjusted logistic regression.

Results

267 subjects were included. Overall prevalence of OAS was 8.9% (95%CI 6.1–13.1%). Prevalence of OAS for allergic rhinitis and asthma were 8.8% and 9.1%, respectively. In patients sensitised to pollen, the prevalence ranged from 9.6% to 12.2% depending on the type of pollen. 62.5% of children with OAS were sensitive to pineapple. After adjusting for gender and family history of atopic disease, trees from the Quercus species showed an association with OAS (OR=2.7, 95%CI 1.2–6.2).

Conclusions

OAS is not uncommon in our environment. Pineapple, a typical fruit from the region, was the main food related. Quercus sp., but not birch nor olive, was the pollen associated with this syndrome.

Keywords:
Food hypersensitivity
Child
Cross-reactions
Pollen
Risk factors

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