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GROUSE Information

What is GROUSE? 

GROUSE (Greater Plains Collaborative Reusable Observable Unified Study Environment) is a GPC project to obtain health insurance claims from the Center for Medicare and Medicaid Services through the Research Data Assistance Center (ResDAC) at the University of Minnesota. 

  • The GROUSE environment is a unique data repository containing claims data, site i2b2 data, and site PCORnet CDM data.
  • We currently have 2011-2016 Medicare data and 2011-2012 Medicaid data from the 9 states in the GPC.
  • We have purchased and recently received 2017 Medicare data which will be loaded into the GROUSE environment and linked after we refresh our crosswalks with participating sites.

What you need to know before requesting GROUSE?

If you've defined clear study objectives and found GROUSE to be a fitting data resource for your research, here are some things you may need to know or complete before requesting access to GROUSE:

  • Define your study cohort and identify if it falls under one of the following pre-approved cohorts: obesity, breast cancer, ALS
  • Complete the Budget Evaluation Form for a cost estimate of the request and secure funding
  • Prepare necessary documents if you need to make a re-use request (Note: checklist of required documents will be provided upon request approval via email)

How to request access to GROUSE?

If your project is approved or you are added to an approved project, please follow the next steps to request your access to GROUSE:

  • Confirm that you are current on human subject training and conflict of interest (COI) disclosure
  • Complete the GROUSE Access Request Form

​It can take up to 45 days for the GROUSE team to review your request and obtain IRB approval.  Once your account creation request is approved, you will need to complete the onboard trainings to obtain your GROUSE account.  It can take up to 30 days for the KUMC GROUSE team to create necessary accounts and privileges for you to access GROUSE upon training completion.

How to manage an approved project on GROUSE?

​By completing the GROUSE Data Request Form, all approved users with an active GROUSE account can also make the following requests:

  • Download aggregated data
  • Upload additional data
  • Request new software package

Additional Questions and Feedback

Please fill out this GROUSE Request Form with any other questions or requests.  We also welcome your feedback and suggestions, please write to us at