NIH Report Says Spinal Manipulation Unlikely to Cause Stroke
The National Institutes of Health (NIH) has issued a report stating that chiropractic care is unlikely to cause stroke as some opponents of chiropractic care have asserted. The report was based on a study published in the Journal of Manipulative and Physiological Therapeutics on January 15, 2015.
The NIH report, first published January 15, and updated on March 3, 2015, starts by stating, “An analysis of Medicare claims data from older Americans who sought care for neck pain from chiropractors suggests that cervical spine manipulation is unlikely to cause stroke.” This newest study adds to the growing body of scientific evidence that shows that chiropractic care is safe and does not increase the risk of stroke. The NIH report further noted, “This is the first population-based study in the United States to examine the risk of stroke after spinal manipulation and the first such study on older adults.”
The study was conducted by researchers from Dartmouth College and the Southern California University of Health Sciences and was supported by the National Center for Complementary and Integrative Health. The authors note that this study research plan was reviewed and approved by the Dartmouth College Committee for Protection of Human Subjects.
Researchers reviewed 1.1 million Medicare claims from 2006 through 2008. Cases included in the data were all Medicare patients ages 66 to 99 who had a diagnosis of neck pain and who had visited either a chiropractor or a medical doctor for that condition. The researchers then checked the records to see how many of these patients had suffered a stroke within 7 days or within 30 days of their visit to either provider.
The results of this study showed that the rate of vertebrobasilar stroke, the type of stoke some had tried to suggest was associated with chiropractic adjustments, is extremely rare. The researchers noted that when reviewing the data for all types of strokes, there was no statistical risk shown when comparing Medicare patients who went to medical doctors or chiropractors for the complaint of neck pain.