PMID- 34871160 OWN - NLM STAT- MEDLINE DCOM- 20211217 LR - 20220104 IS - 1539-6304 (Electronic) IS - 1088-5412 (Print) IS - 1088-5412 (Linking) VI - 42 IP - 6 DP - 2021 Nov 1 TI - Does aeroallergen sensitivity and allergic rhinitis in children cause milder COVID-19 infection? PG - 522-529 LID - 10.2500/aap.2021.42.210087 [doi] AB - Background: There are conflicting data with regard to the impact of respiratory and allergic comorbidities on the course of novel coronavirus disease 2019 (COVID-19) in children. Objective: This study aimed to investigate the relationship between allergic diseases and COVID-19 severity in pediatric patients. Methods: Seventy-five pediatric patients with COVID-19 were classified according to clinical severity and evaluated in the allergy/immunology and pulmonology departments 1 to 3 months after the infection resolved. Blood was collected from the patients for a complete blood cell count and assessment of immunoglobulin and total immunoglobulin E (IgE) levels, and skin-prick tests and spirometry tests were performed. Results: A total of 75 patients ages 5-18 years were evaluated. COVID-19 was asymptomatic/mild in 44 patients and moderate/severe/critical in 31 patients. Based on allergy evaluation, allergic rhinitis was diagnosed in 19 patients (25.3%), asthma in 10 patients (13%), and atopic dermatitis in 3 patients (4%). Aeroallergen sensitivity was detected in 26 patients (34.7%). COVID-19 infection was asymptomatic/mild in 15 patients with allergic rhinitis (78.9%) and in 21 with aeroallergen sensitivity (80.8%) (p = 0.038 and p = 0.005, respectively). There was no difference in severity between the patients with and without asthma (p = 0.550). The median (interquartile range) total IgE level was significantly higher in the asymptomatic/mild group (71.8 [30.7-211.2]) (p = 0.015). There were no differences in terms of spirometry parameters. Conclusion: Aeroallergen sensitization and allergic rhinitis in children may be associated with a milder course of COVID-19. The knowledge that atopy is associated with less-severe COVID-19 outcomes in children may guide clinical risk classification. FAU - Vezir, Emine AU - Vezir E AD - From the Department of Pediatric Allergy and Clinical Immunology, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey. FAU - Hizal, Mina AU - Hizal M AD - Department of Pediatric Pulmonology, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey. FAU - Cura Yayla, Burcu AU - Cura Yayla B AD - Department of Pediatric Infectious Disease, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey. FAU - Aykac, Kubra AU - Aykac K AD - Department of Pediatric Infectious Disease, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey. FAU - Yilmaz, Arzu AU - Yilmaz A AD - Department of Pediatrics, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey, and. FAU - Kaya, Gamze AU - Kaya G AD - Department of Pediatrics, University of Health Sciences, Ankara Training and Research Hospital, Ankara, Turkey, and. FAU - Oygar, Pembe Derin AU - Oygar PD AD - Department of Pediatric Infectious Disease, Faculty of Medicine, Hacettepe University, Ankara, Turkey. FAU - Ozsurekci, Yasemin AU - Ozsurekci Y AD - Department of Pediatric Infectious Disease, Faculty of Medicine, Hacettepe University, Ankara, Turkey. FAU - Ceyhan, Mehmet AU - Ceyhan M AD - Department of Pediatric Infectious Disease, Faculty of Medicine, Hacettepe University, Ankara, Turkey. LA - eng PT - Journal Article PL - United States TA - Allergy Asthma Proc JT - Allergy and asthma proceedings JID - 9603640 RN - 0 (Allergens) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Adolescent MH - Allergens/*adverse effects MH - Asthma/*diagnosis/epidemiology/immunology MH - COVID-19/*complications/diagnosis/epidemiology MH - Child MH - Child, Preschool MH - Dermatitis, Atopic/*diagnosis/epidemiology/immunology MH - Female MH - Humans MH - Hypersensitivity/*diagnosis/epidemiology/immunology MH - Immunoglobulin E/blood MH - Male MH - Respiratory Function Tests MH - Rhinitis, Allergic/*diagnosis/epidemiology/immunology MH - SARS-CoV-2 MH - Severity of Illness Index MH - Skin Tests/*statistics & numerical data MH - Turkey/epidemiology PMC - PMC8654388 COIS- The authors have no conflicts of interest to declare pertaining to this article. EDAT- 2021/12/07 06:00 MHDA- 2021/12/18 06:00 PMCR- 2021/11/01 CRDT- 2021/12/06 17:18 PHST- 2021/12/06 17:18 [entrez] PHST- 2021/12/07 06:00 [pubmed] PHST- 2021/12/18 06:00 [medline] PHST- 2021/11/01 00:00 [pmc-release] AID - AAP230-21 [pii] AID - 10.2500/aap.2021.42.210087 [doi] PST - ppublish SO - Allergy Asthma Proc. 2021 Nov 1;42(6):522-529. doi: 10.2500/aap.2021.42.210087.