Unique Changes in the Incidence of Acute Chest Syndrome in Children With Sickle Cell Disease Unravel the Role of Respiratory Pathogens: A Time Series Analysis.
COVID-19 pandemic
acute chest syndrome
attributable fraction
child
influenza
nonpharmaceutical interventions
pneumococcus
respiratory pathogens
sickle cell disease
time series analysis
Journal
Chest
ISSN: 1931-3543
Titre abrégé: Chest
Pays: United States
ID NLM: 0231335
Informations de publication
Date de publication:
05 Aug 2023
05 Aug 2023
Historique:
received:
23
05
2023
revised:
27
07
2023
accepted:
30
07
2023
pubmed:
7
8
2023
medline:
7
8
2023
entrez:
6
8
2023
Statut:
aheadofprint
Résumé
Acute chest syndrome (ACS) is a life-threatening complication of sickle cell disease (SCD). Although respiratory pathogens are frequently detected in children with ACS, their respective role in triggering the disease is still unclear. We hypothesized that the incidence of ACS followed the unprecedented population-level changes in respiratory pathogen dynamics after COVID-19-related nonpharmaceutical interventions (NPIs). What is the respective role of respiratory pathogens in ACS epidemiology? This study was an interrupted time series analysis of patient records from a national hospital-based surveillance system. All children aged < 18 years with SCD hospitalized for ACS in France between January 2015 and May 2022 were included. The monthly incidence of ACS per 1,000 children with SCD over time was analyzed by using a quasi-Poisson regression model. The circulation of 12 respiratory pathogens in the general pediatric population over the same period was included in the model to assess the fraction of ACS potentially attributable to each respiratory pathogen. Among the 55,941 hospitalizations of children with SCD, 2,306 episodes of ACS were included (median [interquartile range] age, 9 [5-13] years). A significant decrease was observed in ACS incidence after NPI implementation in March 2020 (-29.5%; 95% CI, -46.8 to -12.2; P = .001) and a significant increase after lifting of the NPIs in April 2021 (24.4%; 95% CI, 7.2 to 41.6; P = .007). Using population-level incidence of several respiratory pathogens, Streptococcus pneumoniae accounted for 30.9% (95% CI, 4.9 to 56.9; P = .02) of ACS incidence over the study period and influenza 6.8% (95% CI, 2.3 to 11.3; P = .004); other respiratory pathogens had only a minor role. NPIs were associated with significant changes in ACS incidence concomitantly with major changes in the circulation of several respiratory pathogens in the general population. This unique epidemiologic situation allowed determination of the contribution of these respiratory pathogens, in particular S pneumoniae and influenza, to the burden of childhood ACS, highlighting the potential benefit of vaccine prevention in this vulnerable population.
Sections du résumé
BACKGROUND
BACKGROUND
Acute chest syndrome (ACS) is a life-threatening complication of sickle cell disease (SCD). Although respiratory pathogens are frequently detected in children with ACS, their respective role in triggering the disease is still unclear. We hypothesized that the incidence of ACS followed the unprecedented population-level changes in respiratory pathogen dynamics after COVID-19-related nonpharmaceutical interventions (NPIs).
RESEARCH QUESTION
OBJECTIVE
What is the respective role of respiratory pathogens in ACS epidemiology?
STUDY DESIGN AND METHODS
METHODS
This study was an interrupted time series analysis of patient records from a national hospital-based surveillance system. All children aged < 18 years with SCD hospitalized for ACS in France between January 2015 and May 2022 were included. The monthly incidence of ACS per 1,000 children with SCD over time was analyzed by using a quasi-Poisson regression model. The circulation of 12 respiratory pathogens in the general pediatric population over the same period was included in the model to assess the fraction of ACS potentially attributable to each respiratory pathogen.
RESULTS
RESULTS
Among the 55,941 hospitalizations of children with SCD, 2,306 episodes of ACS were included (median [interquartile range] age, 9 [5-13] years). A significant decrease was observed in ACS incidence after NPI implementation in March 2020 (-29.5%; 95% CI, -46.8 to -12.2; P = .001) and a significant increase after lifting of the NPIs in April 2021 (24.4%; 95% CI, 7.2 to 41.6; P = .007). Using population-level incidence of several respiratory pathogens, Streptococcus pneumoniae accounted for 30.9% (95% CI, 4.9 to 56.9; P = .02) of ACS incidence over the study period and influenza 6.8% (95% CI, 2.3 to 11.3; P = .004); other respiratory pathogens had only a minor role.
INTERPRETATION
CONCLUSIONS
NPIs were associated with significant changes in ACS incidence concomitantly with major changes in the circulation of several respiratory pathogens in the general population. This unique epidemiologic situation allowed determination of the contribution of these respiratory pathogens, in particular S pneumoniae and influenza, to the burden of childhood ACS, highlighting the potential benefit of vaccine prevention in this vulnerable population.
Identifiants
pubmed: 37544426
pii: S0012-3692(23)05256-X
doi: 10.1016/j.chest.2023.07.4219
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
Copyright © 2023 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Financial/Nonfinancial Disclosures The authors have reported to CHEST the following: N. O. reports travel grants from GlaxoSmithKline, Pfizer, and Sanofi. A. R. reports travel grants from Pfizer and AstraZeneca and personal fees from MSD outside the submitted work. A. V. reports personal fees from Sanofi, Moderna, GlaxoSmithKline, and MSD. R. C. reports speaking and lecture fees from Pfizer, Sanofi, GlaxoSmithKline, and MSD; and funding and travel grants from Pfizer. E. V. reports grants from Santé Publique France, Pfizer, and MSD. F. A. reports honoraria from Pfizer, GlaxoSmithKline, MSD, and Sanofi outside the submitted work. None declared (Z. A., Z. V., F. K., A. L., L.-L. P., L. L., A. F., M. C., C. L., F. G., B. K.).