> ## Documentation Index
> Fetch the complete documentation index at: https://glossary.micahealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Secondary outcome measure

An additional measurement to evaluate treatment effects that, while important, is not the main focus of the study. Most studies include multiple secondary outcomes to capture different aspects of the treatment's impact.

[*Source*](https://clinicaltrials.gov/study-basics/glossary)