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Ellen MacKenzie, PhD

  • Bloomberg Distinguished Professor
  • Professor

Departmental Affiliations

Center & Institute Affiliations

Contact Information

624 N. Broadway
Hampton House 482
Baltimore, Maryland 21205


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PhD, Johns Hopkins University, 1979


Dr. MacKenzie's research focuses on the impact of health services and policies on the short-and long-term consequences of traumatic injury. She has contributed to the development and evaluation of tools for measuring both the severity and outcome of injury, which have been used to evaluate the organization, financing and performance of trauma systems and rehabilitation services . Of particular interest to Dr. MacKenzie is the delineation of factors (both medical and non-medical) that explain variations in functional outcome. Her research has advanced the knowledge of the economic and social impact of injuries and our understanding of how personal and environmental factors influence recovery and return to work.

Dr. MacKenzie's ongoing research include: a national evaluation of the cost and effectiveness of trauma care; the evaluation of amputation versus limb salvage in the military; the development and evaluation of self management programs following trauma and limb loss; and efforts to facilitate the development and exchange of information among trauma and EMS providers. Most recently, Dr. MacKenzie and colleagues have partnered with the American Trauma Society to facilitate on-line social networks among trauma survivors and translate traditional self management programs to a web 2.0 environment.

Honors and Awards

Phi Beta Kappa Golden Apple for Teaching, Johns Hopkins School of Hygiene and Public Health, 1984 Delta Omega, Public Health Honorary General Motors Trauma Research Award, Eastern Association for the Surgery of Trauma A.J. Mirkin Service Award, Association for the Advancement of Automotive Medicine Charter Fellow, Association for the Advancement of Automotive Medicine Honorary Fellow, American Association for the Surgery of Trauma Distinguished Career Award, American Public Health Association (Injury Control and Emergency Health Services Section) Distinguished Achievement Award, American Trauma Society Award of Merit, Association for the Advancement of Automotive Medicine Ann Doner Vaughan Kappa Delta Award, American Academy of Orthopaedic Surgeons Nursing Leadership Award, Society of Trauma Nurses President, American Trauma Society

  • injury control outcomes research disability and rehabilitation health services reserach consumer informatics
  • Bosse MJ, MacKenzie EJ, Kellam JF, et al.  Reconstruction or Amputation of Lower Limb Threatening Injuries: An Analysis of Two-Year Outcomes in Level I Trauma Centers.   New England Journal of Medicine, 2002; 347(24): 1924-1931.

  • MacKenzie EJ, Hoyt DB, Sacra JC, Jurkovich GJ, Carlini AR, Teitelbaum SD, Teter H. A National Inventory of Hospital Trauma Centers. JAMA. 2003; 289: 1515-1522.

  • MacKenzie EJ, Rivara FP, Jurkovich GJ, Nathens AN et al. A National Evaluation of the Effect of Trauma Center Care on Mortality. New England Journal of Medicine, 2006; Jan 26; 354(4):366-78.

  • MacKenzie E, Weir S, Rivara F, Jurkovich G, Nathens A, Wang W, Scharfstein D, Salkever D, The Value of Trauma Center Care.  J Trauma, 2010; 69(1): 1-10.

  • Wegener ST, MacKenzie EJ, Ephraim P, Ehde D, Williams R.  Self-Management Improves Outcomes in Persons with Limb Loss.  Arch Phys Med Rehabil. 2009; Mar; 90(3):373-80.