“…10,11,17 Several investigations also documented hypertensive diseases, hyperlipidemia, diabetes, mental disorders, liver cirrhosis, pneumonia, and smoking cessation as coexisting medical conditions associated with stroke. 18,20,21,24,25 To reduce the confounding effects, we controlled these TBI-related or stroke-related coexisting medical conditions in the multivariate regressions analysis. After adjustment, we clearly demonstrated increased risk of TBI and subsequent mortality in patients with stroke in both retrospective cohort and nested cohort studies related with medical conditions.…”