Prevalence and early-life risk factors of school-age allergic multimorbidity: The EuroPrevall-iFAAM birth cohort.
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AuthorsSigurdardottir, Sigurveig T
Lilja Bjornsdottir, Kristin
Sigurdardottir, Sigridur Erla
Papadopoulos, Nikolaos G
Sprikkelman, Aline B
Kowalski, Marek L
Erhard, Sina Maria
Rivas, Montserrat Fernandez
van Ree, Ronald
MetadataShow full item record
CitationSigurdardottir ST, Jonasson K, Clausen M, Lilja Bjornsdottir K, Sigurdardottir SE, Roberts G, Grimshaw K, Papadopoulos NG, Xepapadaki P, Fiandor A, Quirce S, Sprikkelman AB, Hulshof L, Kowalski ML, Kurowski M, Dubakiene R, Rudzeviciene O, Bellach J, Yürek S, Reich A, Erhard SM, Couch P, Rivas MF, van Ree R, Mills C, Grabenhenrich L, Beyer K, Keil T. Prevalence and early-life risk factors of school-age allergic multimorbidity: The EuroPrevall-iFAAM birth cohort. Allergy. 2021 Sep;76(9):2855-2865. doi: 10.1111/all.14857.
AbstractBackground: Coexistence of childhood asthma, eczema and allergic rhinitis is higher than can be expected by chance, suggesting a common mechanism. Data on allergic multimorbidity from a pan-European, population-based birth cohort study have been lacking. This study compares the prevalence and early-life risk factors of these diseases in European primary school children. Methods: In the prospective multicentre observational EuroPrevall-iFAAM birth cohort study, we used standardized questionnaires on sociodemographics, medical history, parental allergies and lifestyle, and environmental exposures at birth, 12 and 24 months. At primary school age, parents answered ISAAC-based questions on current asthma, rhinitis and eczema. Allergic multimorbidity was defined as the coexistence of at least two of these. Results: From 10,563 children recruited at birth in 8 study centres, we included data from 5,572 children (mean age 8.2 years; 51.8% boys). Prevalence estimates were as follows: asthma, 8.1%; allergic rhinitis, 13.3%; and eczema, 12.0%. Allergic multimorbidity was seen in 7.0% of the whole cohort, ranging from 1.2% (Athens, Greece) to 10.9% (Madrid, Spain). Risk factors for allergic multimorbidity, identified with AICc, included family-allergy-score, odds ratio (OR) 1.50 (95% CI 1.32-1.70) per standard deviation; early-life allergy symptoms, OR 2.72 (2.34-3.16) for each symptom; and caesarean birth, OR 1.35 (1.04-1.76). Female gender, OR 0.72 (0.58-0.90); older siblings, OR 0.79 (0.63-0.99); and day care, OR 0.81 (0.63-1.06) were protective factors. Conclusion: Allergic multimorbidity should be regarded as an important chronic childhood disease in Europe. Some of the associated early-life factors are modifiable and may be considered for prevention strategies. Keywords: allergic multimorbidity; allergic rhinitis; asthma; children; eczema.
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Rights© 2021 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.