CONCLUSIONS
“We did not find evidence of Long COVID risk
decreasing over time... Our findings indicate that preventing and mitigating Long COVID remains a public health priority.”
“There are multiple potential explanations for the stability of incidence proportions into 2024 that would benefit from further investigation.”
KEY FINDINGS
Overall, 4% of children and 10%-26% of adults
developed Long COVID, depending on
computable phenotype used.
There was no decline in risk of Long COVID
over time. Monthly patterns rose with new
variants and Long COVID incidence did not
show a sustained drop through 2024.
When the team compared to COVID-negative
and pre-pandemic control groups, “excess
incidence" was 5% to 6% among adults and 1.5% in children, representing a lower bound
incidence estimation based on the study control
groups.