Mitigated fraction comparing treatment to control.
Usage
MFr(formula, data, compare = c("con", "vac"))
Arguments
formula
Formula of the form y ~ x, where y
is a continuous response and x is a factor with two
levels
data
Data frame
compare
Text vector stating the factor levels --
compare[1] is the control or reference group to
which compare[2] is compared
Value
The estimated mitigated fraction.
Details
The mitigated fraction is an estimator that quantifies an
intervention's effect on reducing the severity of a
condition. Since its units are on the probability scale,
it is often a good idea to accompany it with an estimator
on the original scale of measurement.
References
Siev D, 2005. An estimator of intervention effect on
disease severity. Journal of Modern Applied
Statistical Methods. 4:500-508