Publications by authors named "William J Schoelkopf"
Background: Cervical artery dissection and subsequent ischemic stroke is the most serious safety concern associated with cervical spinal manipulation.
Methods: We evaluated the association between cervical spinal manipulation and cervical artery dissection among older Medicare beneficiaries in the United States. We employed case-control and case-crossover designs in the analysis of claims data for individuals aged 65+, continuously enrolled in Medicare Part A (covering hospitalizations) and Part B (covering outpatient encounters) for at least two consecutive years during 2007-2015.