Work out incremental cost effectiveness ratio instantly with clear inputs, formula shown and shareable results.
Divides the difference in cost by the difference in effect between two options and names the quadrant of the cost-effectiveness plane.
ICER
ICER = (cost of new - cost of comparator) / (effect of new - effect of comparator)
A negative ratio can mean either dominance or being dominated, so the quadrant must always be stated.
When a third option gives more effect at a lower ICER, ruling out an intermediate option in a sequential analysis.