Adverse Events Prevented Calculator

Institute for Healthcare Improvement
Cambridge, Massachusetts, USA


This tool allows one to track the change in rate of any one type of adverse event over time and, when appropriate additional data are added, the consequent change in unnecessary deaths ("lives saved"), real and additional potential cost savings ("dark green dollar" savings and "light green dollar" savings, respectively), and the return on investment of quality improvement work targeting those adverse events.


In response to widespread interest in making the "business case" for quality, IHI developed this business case calculator, which can be used to model the financial implications of reductions in adverse event rates.


Listen to an audio recording that describes how to use the Adverse Events Prevented Calculator.

IHI Media Player
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