Before revision: In epidemiology, the relative risk reduction is a measure calculated by dividing the absolute risk reduction by the control event rate.Measuring the size of an intervention Like many other epidemiological measures, the same equations can be used to measure a benefit or a harm (although the signs may need to be adjusted, depending upon how the data were collected. )
After revision: In epidemiology, the relative risk reduction is a measure calculated by dividing the absolute risk reduction by the control event rate.Measuring the size of an intervention (RRR) or efficacy is the