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Inicio Allergologia et Immunopathologia Phenotypical characterization of tree nuts and peanut allergies in east Mediterr...
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Vol. 48. Issue 4.
Pages 316-322 (July - August 2020)
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Vol. 48. Issue 4.
Pages 316-322 (July - August 2020)
Original Article
DOI: 10.1016/j.aller.2019.07.005
Phenotypical characterization of tree nuts and peanut allergies in east Mediterranean children
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Pınar Gur Cetinkayaa, Betul Buyuktiryakia, Ozge Soyera, Umit Murat Sahinera, Cansın Sackesenb, Bulent Enis Sekerela,
Corresponding author
b_sekerel@yahoo.com

Corresponding author.
a Division of Pediatric Allergy and Asthma Unit, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Sıhhiye, Ankara, 06100 Turkey
b Division of Pediatric Allergy, Koc University School of Medicine, Istanbul, Turkey
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Figures (2)
Tables (4)
Table 1. Characterization of the study population (n=227).
Table 2a. Correlation between SPT wheal diameters of TNs and PN.
Table 2b. Correlation between sIgE of TNs and PN.
Table 3. Co-allergy rates between TNs/PN.
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Abstract
Introduction/Objectives

The characteristics of tree nuts (TNs) and peanut (PN) allergies vary in different regions of the world. We aim to identify the characteristics of TNs/PN allergies in Turkish children.

Patients and Methods

A total of 227 children [4.8 (3.2–6.8) years] with TN and/or PN allergies were included. The phenotypical features of TNs/PN allergic children and the risk factors for multiple TNs/PN allergies were evaluated.

Results

Allergy to TNs/PN developed at a median age of 12.0 (10.0–18.0) months. The most common TNs/PN responsible for food allergies were the hazelnut (63.9%) and the pistachio (54.6%). Of TNs/PN allergic children, 54.2% experienced reactions with at least two types of . Current ages 6–10 years [OR:2.455, 95% CI:1.255-4.852, p=0.009] and family history of atopy [OR:2.156, 95% CI:1.182–3.932, p=0.012] were the risk factors for multiple TNs/PN allergies. Most of the patients with cashew nut and pistachio allergies exhibited co-sensitization and co-allergy to both of these TNs/PN. Although the rarest TNs/PN allergy was seen with almond, the possibility of allergy to other TNs or PN was highly increased in the patients with almond allergy compared to other TNs/PN.

Conclusions

Children with TNs/PN allergy living in an East Mediterranean region differ from the counterparts living in Western countries by an earlier age of onset of the TNs/PN allergy symptoms, increasing possibility to have multiple TNs/PN allergy at older ages, and different spectrum of TN/PN allergies (hazelnut followed by pistachio/cashew) that all indicate the consumption habits which are important determinants of TN/PN allergy development.

Keywords:
Children
Co-allergy
Co-sensitization
Peanut
Tree nuts
Abbreviations:
AD
AR
CVS
GIS
IQR
OFC
PN
sIgE
SPT
TNs

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