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An Epidemiological Examination of the Subluxation Construct Using Hill’s Criteria of Causation
Mirtz, Timothy A. Morgan, Lon Wyatt, Lawrence Greene, Leon
Mirtz, Timothy A.
Morgan, Lon
Wyatt, Lawrence
Greene, Leon
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Abstract
Background
Chiropractors claim to locate, analyze and diagnose a putative spinal lesion known as subluxation and apply the mode of spinal manipulation (adjustment) for the correction of this lesion.
Aim
The purpose of this examination is to review the current evidence on the epidemiology of the subluxation construct and to evaluate the subluxation by applying epidemiologic criteria for it's significance as a causal factor.
Methods
The databases of PubMed, Cinahl, and Mantis were searched for studies using the keywords subluxation, epidemiology, manipulation, dose-response, temporality, odds ratio, relative risk, biological plausibility, coherence, and analogy.
Results
The criteria for causation in epidemiology are strength (strength of association), consistency, specificity, temporality (temporal sequence), dose response, experimental evidence, biological plausibility, coherence, and analogy. Applied to the subluxation all of these criteria remain for the most part unfulfilled.
Conclusion
There is a significant lack of evidence to fulfill the basic criteria of causation. This lack of crucial supportive epidemiologic evidence prohibits the accurate promulgation of the chiropractic subluxation.
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Date
2009-12-02
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BioMed Central
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Citation
Mirtz, Timothy A, Lon Morgan, Lawrence H Wyatt, and Leon Greene. 2009. “An Epidemiological Examination of the Subluxation Construct Using Hill’s Criteria of Causation.” Chiropractic & Osteopathy 17:13. http://dx.doi.org/10.1186/1746-1340-17-13.