- CONSORT Evidence Database
- Related guidelines and initiatives
- Useful sites
Outcome (primary and secondary)
An outcome variable of interest in the trial (also called an end point). Differences between groups in the outcome variable(s) are believed to be the result of the differing interventions.
The primary outcome is the outcome of greatest importance. Data on secondary outcomes are used to evaluate additional effects of the intervention.
Page last edited: 01 March 2007