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Multicenter Study
. 2022 Jan 4;5(1):e2142322.
doi: 10.1001/jamanetworkopen.2021.42322.

Outcomes of SARS-CoV-2-Positive Youths Tested in Emergency Departments: The Global PERN-COVID-19 Study

Collaborators, Affiliations
Multicenter Study

Outcomes of SARS-CoV-2-Positive Youths Tested in Emergency Departments: The Global PERN-COVID-19 Study

Anna L Funk et al. JAMA Netw Open. .

Abstract

Importance: Severe outcomes among youths with SARS-CoV-2 infections are poorly characterized.

Objective: To estimate the proportion of children with severe outcomes within 14 days of testing positive for SARS-CoV-2 in an emergency department (ED).

Design, setting, and participants: This prospective cohort study with 14-day follow-up enrolled participants between March 2020 and June 2021. Participants were youths aged younger than 18 years who were tested for SARS-CoV-2 infection at one of 41 EDs across 10 countries including Argentina, Australia, Canada, Costa Rica, Italy, New Zealand, Paraguay, Singapore, Spain, and the United States. Statistical analysis was performed from September to October 2021.

Exposures: Acute SARS-CoV-2 infection was determined by nucleic acid (eg, polymerase chain reaction) testing.

Main outcomes and measures: Severe outcomes, a composite measure defined as intensive interventions during hospitalization (eg, inotropic support, positive pressure ventilation), diagnoses indicating severe organ impairment, or death.

Results: Among 3222 enrolled youths who tested positive for SARS-CoV-2 infection, 3221 (>99.9%) had index visit outcome data available, 2007 (62.3%) were from the United States, 1694 (52.6%) were male, and 484 (15.0%) had a self-reported chronic illness; the median (IQR) age was 3 (0-10) years. After 14 days of follow-up, 735 children (22.8% [95% CI, 21.4%-24.3%]) were hospitalized, 107 (3.3% [95% CI, 2.7%-4.0%]) had severe outcomes, and 4 children (0.12% [95% CI, 0.03%-0.32%]) died. Characteristics associated with severe outcomes included being aged 5 to 18 years (age 5 to <10 years vs <1 year: odds ratio [OR], 1.60 [95% CI, 1.09-2.34]; age 10 to <18 years vs <1 year: OR, 2.39 [95% CI 1.38-4.14]), having a self-reported chronic illness (OR, 2.34 [95% CI, 1.59-3.44]), prior episode of pneumonia (OR, 3.15 [95% CI, 1.83-5.42]), symptoms starting 4 to 7 days prior to seeking ED care (vs starting 0-3 days before seeking care: OR, 2.22 [95% CI, 1.29-3.82]), and country (eg, Canada vs US: OR, 0.11 [95% CI, 0.05-0.23]; Costa Rica vs US: OR, 1.76 [95% CI, 1.05-2.96]; Spain vs US: OR, 0.51 [95% CI, 0.27-0.98]). Among a subgroup of 2510 participants discharged home from the ED after initial testing and who had complete follow-up, 50 (2.0%; 95% CI, 1.5%-2.6%) were eventually hospitalized and 12 (0.5%; 95% CI, 0.3%-0.8%) had severe outcomes. Compared with hospitalized SARS-CoV-2-negative youths, the risk of severe outcomes was higher among hospitalized SARS-CoV-2-positive youths (risk difference, 3.9%; 95% CI, 1.1%-6.9%).

Conclusions and relevance: In this study, approximately 3% of SARS-CoV-2-positive youths tested in EDs experienced severe outcomes within 2 weeks of their ED visit. Among children discharged home from the ED, the risk was much lower. Risk factors such as age, underlying chronic illness, and symptom duration may be useful to consider when making clinical care decisions.

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Conflict of interest statement

Conflict of Interest Disclosures: Dr Florin reported receiving grants from the National Institute of Allergy and Infectious Diseases and the National Heart, Lung, and Blood Institute outside the submitted work. Dr Ambroggio reported receiving grants from Pfizer outside the submitted work. Dr Malley reported receiving personal fees from Merck as a consultant, grants from Pfizer, grants from Astellas, and reported being a board member and consultant for Affinivax Scientific Founder outside the submitted work. Dr Morris reported royalties from intellectual property from UCSF Benioff Children's Hospital Oakland; grants from NIH/NHLBI, grants from FDA, and grants from NIH/NCCIM outside the submitted work; in addition, Dr Morris had a patent for therapeutics related to Arginine bioavailability in COVID-19 and MISC pending. Dr Becker reported receiving Primary Children's Hospital Fee per enrolled study participant from University of Utah during the conduct of the study. No other disclosures were reported.

Figures

Figure 1.
Figure 1.. Flow of SARS-CoV-2–Positive Study Participants Including Outcomes and Follow-up
ED indicates emergency department; ICU, intensive care unit. aFive of 3221 youths did not test positive on day 0, but did within 14 days. bIncludes 8 youths transferred to other tertiary facilities. cAs per analysis plan, considers only youths with full 14-day follow-up.
Figure 2.
Figure 2.. Severe Outcomes Among SARS-CoV-2–Positive Study Participants Displayed in Relation to Month of Enrollment

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