Derive mean difference and associated confidence intervals
for exposure-adjusted rates (per 100 PYs)
Usage
calculate_diff_rates(rate1, rate2, py1, py2, cl = 0.95)
Arguments
- rate1
(numeric)
Event or incidence rate (per 100 PYs) in active
treatment
- rate2
(numeric)
Event or incidence rate (per 100 PYs) in
comparatortreatment
- py1
(numeric)
100PEY or 100PYAR in active treatment
- py2
(numeric)
100PEY or 100PYAR in comparator treatment
- cl
(numeric)
confidence level
Examples
calculate_diff_rates(
rate1 = 152.17, rate2 = 65.21, py1 = 230, py2 = 230,
cl = 0.95
)
#> [2026-04-03 10:48:02] > CI for treatment difference in exposure-adjusted rates is calculated and saved in a dataframe
#> diff se lower upper
#> 1 86.96 0.9721782 85.05457 88.86543