Childhood asthma outcomes during the COVID-19 pandemic: Findings from the PeARL multi-national cohort
- PMID: 33608919
- PMCID: PMC8013557
- DOI: 10.1111/all.14787
Childhood asthma outcomes during the COVID-19 pandemic: Findings from the PeARL multi-national cohort
Abstract
Background: The interplay between COVID-19 pandemic and asthma in children is still unclear. We evaluated the impact of COVID-19 pandemic on childhood asthma outcomes.
Methods: The PeARL multinational cohort included 1,054 children with asthma and 505 non-asthmatic children aged between 4 and 18 years from 25 pediatric departments, from 15 countries globally. We compared the frequency of acute respiratory and febrile presentations during the first wave of the COVID-19 pandemic between groups and with data available from the previous year. In children with asthma, we also compared current and historical disease control.
Results: During the pandemic, children with asthma experienced fewer upper respiratory tract infections, episodes of pyrexia, emergency visits, hospital admissions, asthma attacks, and hospitalizations due to asthma, in comparison with the preceding year. Sixty-six percent of asthmatic children had improved asthma control while in 33% the improvement exceeded the minimal clinically important difference. Pre-bronchodilatation FEV1 and peak expiratory flow rate were improved during the pandemic. When compared to non-asthmatic controls, children with asthma were not at increased risk of LRTIs, episodes of pyrexia, emergency visits, or hospitalizations during the pandemic. However, an increased risk of URTIs emerged.
Conclusion: Childhood asthma outcomes, including control, were improved during the first wave of the COVID-19 pandemic, probably because of reduced exposure to asthma triggers and increased treatment adherence. The decreased frequency of acute episodes does not support the notion that childhood asthma may be a risk factor for COVID-19. Furthermore, the potential for improving childhood asthma outcomes through environmental control becomes apparent.
Keywords: COVID-19; childhood asthma; coronavirus.
© 2021 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd.
Conflict of interest statement
This study was supported by the Respiratory Effectiveness Group (REG). REG has received support from AstraZeneca, Novartis, and Sanofi for continued work on PeARL. TJ reports grants from The Paulo Foundation, Helsinki, Finland. MT reports grants from The Sigrid Juselius Foundation, Helsinki, Finland, during the conduct of the study. None of the other authors had any conflicts of interest directly related to this work. AND, AF, KN,EH, LN‐B, WP, ZC, WF, GW, LG‐M, ZAW‐S, YRHV, CFPB, DRY, CS, PLR, PS, RA‐T, J‐CD, JL, TR, DY, AMR, KW, RE‐O, JAC‐R, AG, CM, AILG, MM‐A, EMNR, MKN, VF, and ER‐Z do not declare any conflicts of interest outside the submitted work either. NGP reports personal fees from ALK, Novartis, Nutricia, HAL, Menarini/FAES Farma, Sanofi, Mylan/MEDA, Biomay, AstraZeneca, GSK, MSD, ASIT BIOTECH, and Boehringer Ingelheim; grants from Gerolymatos International SA and Capricare outside the submitted work. AGM reports grants from Boehringer Ingelheim outside the submitted work. AC reports personal fees from Novartis, Thermo Fisher Scientific, Philips, Sanofi, Stallergenes Greer, AstraZeneca, outside the submitted work. AD reports personal fees and other from Novartis, ALK, MYLAN, GSK,CHIESI, Astra Zeneca, DBV technologies, grants and personal fees from Stallergenes Greer, personal fees from AImmune, Zambon, Boehringer Ingelheim, Nestlé HealthScience, other from Nutricia, outside the submitted work. IA reports and Associate Editor Allergy journal. PXreports personal fees from Nutricia, Nestle, Menarini, Uriach, Novartis PharmaAG, and GlaxoSmithkline outside the submitted work. CM reports personal fees from Novartis, GSK, ThermoFisher, Boehringer Ingelheim, outside the submitted work.
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