A dataframe containing the following columns:
test (character) - the name of the test or panel
prevalence.lower (numeric) - the lower estimate
prevalence.median (numeric) - the median estimate
prevalence.upper (numeric) - the upper estimate
prevalence.method (character) - the method of estimation
prevalence.label (character) - a fomatted label of the true prevalence estimate with CI
Ungrouped.
No default value.