t-Year Population Impact Number of Eliminating a Risk Factor (PIN-ER-t)
Your population size (n)
Number of years (t) over which you are considering the population impact
The incidence rate of the outcome in the population (Ip)
The population size from which this was calculated
The prevalence of the exposure in the population (Pe)
The population size from which this was calculated
The new prevalence of the exposure (0 if eliminating the risk)
Relative risk (RR) of the outcome if the risk factor is present
Lower 95% confidence limit for RR
Upper 95% confidence limit for RR
Make Ip conditional on RR and Pe
Seed for Random Number Generator
Click here for an explnation of the methods used
Written (version 4.0; 8th Aug 07) by
Dr. Iain Buchan
&
Mr. Paul Jarvis
Public Health Informatics
at The University of Manchester