The Number of Events Prevented in Your Population (NEPP)
Your population size (n)

The Prevalence Of The Disease In The Population (Pd)
The population size from which this was calculated

The Baseline Risk of The Event of Interest in The Untreated Group
The population size from which this was calculated

The Proportion Treated Under Best Practice Conditions (Pb)
The population size from which this was calculated

The Proportion Currently Treated (Pt)
The population size from which this was calculated

The Proportion Adhering To Treatment (Pa)
The population size from which this was calculated

The Relative Risk Reduction Associated With The Treament
Lower 95% confidence limit for RRR
Upper 95% confidence limit for RRR

Seed for Random Number Generator
Click here for an explanation of the methods used
Written (version 1.3; 9th Apr 08) by Mr. Paul Jarvis & Dr. Iain Buchan
Public Health Informatics at The University of Manchester