World Neurosurg
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Previous studies have implicated traumatic brain injury (TBI) as a risk factor for Parkinson disease (PD). However, the incidence risk of new-onset TBI among patients with PD is not well established. This study investigated the contribution of PD to new-onset TBI associations. ⋯ This study shows that patients with PD have a high risk of TBI, and the major cause of TBI in patients with PD is fall.