Glossary Term

OWSA

One-Way Sensitivity Analysis (OWSA) tests the effect of changing one model parameter at a time within a plausible range, identifying which inputs most influence cost-effectiveness conclusions.

Illustration representing OWSA
Listen to definition
Related terms
DSA PSA CEAC
Further reading
Mark Bounthavong 2024: VBA for OWSA Wikipedia: Sensitivity Analysis Browse the HEOR resource database

Spotted an error or have a suggestion? Get in touch

Media Kit · Q2 2026

Where should we send it?

Quick details so we can email the kit and follow up if it's a fit. We use this only to talk to you about sponsorship — never sold or shared.

Your details stay with Mirko von Hein. No newsletter sign-ups, no third-party sharing.