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Health Economics Wiki
Model Structuresevidence: mediumv1.0.0

Half-Cycle Correction

An adjustment to Markov model outputs that assumes transitions occur uniformly throughout a cycle rather than at the start or end.

Definition

The half-cycle correction is applied to Markov models to reduce the error introduced by assuming all events occur at the start (or end) of each cycle. Without correction, the model either overestimates or underestimates accumulated costs and QALYs. The correction adds half a cycle's worth of costs and outcomes to the first and last cycles.

Canonical Identity

Version
1.0.0
Published
4/26/2026
Structured Data
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