Calculates the risk ratio (RR) and standard error.

risk_ratio Calculates the risk ratio and standard error.

risk_ratio(y, x, formula, data)

Arguments

y

0-1 binary response variable.

x

0-1 binary independent variable.

formula

A formula object to specify the model as normally used by glm.

data

An objects of class milist, created by df2milist, list2milist or mids2milist.

Value

The risk ratio, related standard error and complete data degrees of freedom (dfcom) as n-2.

Details

Note that the standard error of the RR is in fact the standard error of the (natural) risk ratio.

See also

with.milist

Author

Martijn Heymans, 2021

Examples

imp_dat <- df2milist(lbpmilr, impvar="Impnr")
ra <- with(imp_dat, expr=risk_ratio(Chronic ~ Radiation))