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Spring 2011


Cost Of Care For Common Back Pain Conditions Initiated With Chiropractic Doctor Vs. Medical Doctor/Doctor Of Osteopathy As First Physician: Experience Of One Tennessee-Based General Health Insurer

AUTHORS: Richard L. Liliedahl, M.D.; Michael D. Finch, Ph.D.; David V. Axene, FSA, FCA, MAAA; and Christine M. Goertz, D.C., Ph.D.  

The Palmer Center for Chiropractic Research conducts studies at facilities on each Palmer campus, including the William and Jo Harris Building on the Davenport Campus.
William and Jo Harris building

OBJECTIVE: The primary aim of this study was to determine if there are differences in the cost of low back pain care when a patient is able to choose a course of treatment with a medical doctor (M.D.) versus a doctor of chiropractic (D.C.), given that his/her insurance provides equal access to both provider types.

METHODS: A retrospective claims analysis was performed on Blue Cross Blue Shield of Tennessee’s intermediate and large group fully insured population between Oct. 1, 2004 and Sept. 30, 2006. The insured study population had open access to M.D.s and D.C.s through self-referral without any limit to the number of visits or differences in copays to these two provider types. Our analysis was based on episodes of care for low back pain. An episode was defined as all reimbursed care delivered between the first and the last encounter with a health care provider for low back pain. A 60-day window without an encounter was treated as a new episode. We compared paid claims and risk-adjusted costs between episodes of care initiated with an M.D. with those initiated with a D.C. Results: Paid costs for episodes of care initiated with a D.C. were almost 40 percent less than episodes initiated with an M.D. Even after risk adjusting each patient’s costs, we found that episodes of care initiated with a D.C. were 20 percent less expensive than episodes initiated with an M.D.

CONCLUSIONS: Beneficiaries in our sampling frame had lower overall episode costs for treatment of low back pain if they initiated care with a D.C., when compared to those who initiated care with an M.D.

The entire article can be found at: J Manipulative Physiol Ther 2010;33(9):640-643.

One of the authors of this abstract, Dr. Christine M. Goertz, is Palmer College of Chiropractic’s Vice Chancellor for Research and Health Policy.

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