Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Forest plots of slow background (theta and delta) and abnormal background abnormalities. The pooled prevalence of slow background abnormalities was 0.92 (95% CI 0.83–1.01, SE 0.05, p < 0.01), τ2 0.01, Q (df = 3) 9.62, p < 0.02, I2 = 68.81 (A). The pooled prevalence of abnormal background in non-ICU COVID-19 patients was 0.95 (95%CI 0.88–1.09, SE 0.03, p < 0.01), τ2 0.0, Q (df = 3) 5.45, p = 0.14, I2 44.98 (B).
