Across successive waves of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs), there was a decrease in intensive care unit (ICU) admissions across ages, while ventilatory and oxygen support varied by age, according to a study published online Aug. 21 in JAMA Pediatrics.
Yanshan Zhu, from the University of Queensland in Australia, and colleagues examined whether the dominant circulating SARS-CoV-2 VOCs were associated with differences in COVID-19 severity in hospitalized children (younger than 18 years) using data obtained from nine countries during three time frames. Timeframes (T) 1, 2, and 3 were defined to represent periods of dominance by the ancestral virus, pre-omicron VOCs, and omicron, respectively.
Data were included for 31,785 hospitalized children and adolescents. The researchers found that for children younger than 5 years, there was a reduction in ICU admission across successive SARS-CoV-2 waves (T3 versus T1: risk ratios [RRs], 0.56 and 0.61 for children aged 5 years to “These findings highlight the importance of considering different pediatric age groups when assessing disease severity in SARS-CoV-2,” the authors write.
More information:
Yanshan Zhu et al, International Pediatric COVID-19 Severity Over the Course of the Pandemic, JAMA Pediatrics (2023). DOI: 10.1001/jamapediatrics.2023.3117
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Pediatric ICU admissions for SARS-CoV-2 decreased across waves (2023, September 2)
retrieved 2 September 2023
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