Cost-Effectiveness Plane Explorer

See how incremental costs, health effects, uncertainty and a threshold line combine to support a conditional cost-effectiveness conclusion.

Explore the joint comparison

The explorer generates reproducible synthetic cost-and-effect draws around an expected comparison. Use it to examine quadrants and decision uncertainty, not to analyse real patient or reimbursement data.

Expected comparison

Synthetic uncertainty

Enter a value from −0.95 to 0.95.

Expected result

Expected quadrant—
Expected INMB—
Below threshold line—
Simulation draws—
Generate the plane to interpret the result.
QuadrantShare of draws

Synthetic probabilistic scatter

Cost-effectiveness planeSynthetic incremental cost and effect points with an expected-value marker and threshold line.
Synthetic drawExpected valueThreshold line
Method, interpretation and limits
INMB = (threshold × ΔE) − ΔC
Threshold line: ΔC = threshold × ΔE
  • Points below the threshold line have positive INMB and favour the intervention on cost-effectiveness grounds.
  • The northeast and southwest quadrants involve trade-offs; southeast indicates dominance and northwest indicates being dominated.
  • The percentage below the line describes simulated decision uncertainty and does not replace the expected-INMB decision rule.
  • The synthetic draws use a seeded correlated normal illustration and are not evidence about a real intervention.
  • The tool does not assess budget impact, structural uncertainty, clinical evidence, equity or implementation.

Version 1.0 · Copyright © 2026 Darrin Baines IP Limited. All rights reserved. This tool stores no data and makes no external network requests.