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Guide to Statistics and Methods
July 2018

Practical Guide to Surgical Data Sets: Military Health System Tricare Encounter Data

Author Affiliations
  • 1Center for Surgery and Public Health, Brigham and Women's Hospital, Boston, Massachusetts
  • 2Harvard Medical School, Boston, Massachusetts
  • 3Department of Orthopaedic Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
  • 4Harbor–University of California-Los Angeles Medical Center, Torrance
  • 5Statistical Editor, JAMA Surgery
  • 6Center for Surgery and Public Health, Brigham and Women’s Hospital, Boston, Massachusetts
  • 7Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
  • 8Deputy Editor, JAMA Surgery
JAMA Surg. 2018;153(7):679-680. doi:10.1001/jamasurg.2018.0480

Tricare (often styled TRICARE) is the insurance product owned and operated by the US Department of Defense (DoD); it covers more than 9 million beneficiaries nationwide (Box).1-3 Tricare claims data are maintained by the Military Health System Data Repository (MDR).1-5 Research is performed using administrative insurance claims prepared by the MDR.

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