“…5,6 In this nested cohort study, we investigated whether recurrent stroke, hemorrhagic stroke, high medical expenditure, neurosurgery, hip fracture, and epilepsy were significant risk factors determining post-TBI mortality for patients with stroke which strengthen the causal inference of post-TBI mortality in patients with stroke. 10,11,17,22,23,26,27 Several factors give patients with stroke a significantly higher risk of TBI. First, patients with stroke were more likely to have mental disorders, which are identified as a TBI risk factor.…”