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J Manipulative Physiol Ther · Nov 2013
Comparative Study Observational StudyChiropractic use and changes in health among older medicare beneficiaries: a comparative effectiveness observational study.
- Paula Anne Weigel, Jason Hockenberry, Suzanne Bentler, and Fredric D Wolinsky.
- PhD Candidate, Department of Health Management and Policy, College of Public Health, The University of Iowa, Iowa City, Iowa. Electronic address: Paula-Weigel@uiowa.edu.
- J Manipulative Physiol Ther. 2013 Nov 1; 36 (9): 572-84.
ObjectiveThe purpose of this study was to investigate the effect of chiropractic on 5 outcomes among Medicare beneficiaries: increased difficulties performing activities of daily living (ADLs), instrumental ADLs (IADLs), and lower body functions, as well as lower self-rated health and increased depressive symptoms.MethodsAmong all beneficiaries, we estimated the effect of chiropractic use on changes in health outcomes among those who used chiropractic compared with those who did not, and among beneficiaries with back conditions, we estimated the effect of chiropractic use relative to medical care, both during a 2- to 15-year period. Two analytic approaches were used--one assumed no selection bias, whereas the other adjusted for potential selection bias using propensity score methods.ResultsAmong all beneficiaries, propensity score analyses indicated that chiropractic use led to comparable outcomes for ADLs, IADLs, and depressive symptoms, although there were increased risks associated with chiropractic for declines in lower body function and self-rated health. Propensity score analyses among beneficiaries with back conditions indicated that chiropractic use led to comparable outcomes for ADLs, IADLs, lower body function, and depressive symptoms, although there was an increased risk associated with chiropractic use for declines in self-rated health.ConclusionThe evidence in this study suggests that chiropractic treatment has comparable effects on functional outcomes when compared with medical treatment for all Medicare beneficiaries, but increased risk for declines in self-rated health among beneficiaries with back conditions.© 2013. Published by National University of Health Sciences All rights reserved.
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