Cohort Discovery

Use the Cohort Discovery Tool to find out how many Stanford patients match a particular clinical phenotype, and learn more about this set of patients. Only aggregated, approximate results are provided so this can be used in the preparatory to research phase. For example, you might determine whether there are enough patients to justify a particular study.

Many search criteria are available for defining cohorts, including structured data (diagnosis and procedure codes, drug classes and ingredients, etc.), unstructured clinical notes, and temporal (time-based) constraints. Counts and visualizations are available for each cohort you define, and you can compare multiple cohorts.

 

The Help menu option in the upper right has several useful links:

  • "Read the documentation" takes you to the home page of this site
  • "Request a consultation" takes you to the Data Science Resources Consultation intake form in ServiceNow
  • "View data timeliness report" shows how up-to-date the underlying clinical data is
  • "Tell us what you think" opens up a feedback form

 

Chart Review

If you need to study a cohort in more detail, save it within the tool. Once you have IRB and Privacy Office approvals you can review the individual patient charts in the Chart Review Tool as described in this step-by-step guide

Try it out!

You must be on the Stanford physical network or Virtual Private Network (VPN) to access this tool, and you must have an appropriate role within the School of Medicine.

If you encounter problems or have ideas for improvements, please let us know!