Study Parameters
Niteesh Choudhry, MD, PhD, assistant professor at Harvard Medical School, and Arnold Milstein, MD, MPH, chief physician at Mercer Health and Benefits, evaluated the peer-reviewed literature and constructed an economic model to estimate the likely impact of expanding chiropractic coverage for neck and low back pain within U.S. health plans, including the relative cost-effectiveness of coverage of chiropractic physician services compared to coverage only for medical physician services (medical doctors, osteopathic doctors, physical therapists and others).
Dividing differences in total costs of care per episode of care between chiropractic and other care modalities by differences in their effectiveness provided the authors with estimates of effectiveness measured in dollars per quality-adjusted life years (QALY) units. According to the report, estimates based on dollars per QALY units "are a common currency for assessing the value of health care interventions and thus facilitate the comparison of chiropractic care for spinal disorders with other treatments for these conditions as well as unrelated disorders."
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