Fig. 1From: Cerebrospinal fluid shunt surgery reduces the risk of developing dementia and Alzheimer’s disease in patients with idiopathic normal pressure hydrocephalus: a nationwide population-based propensity-weighted cohort studyPatient selection flowchart. NHIRD, National Health Insurance Research Database. iNPH, idiopathic normal-pressure hydrocephalus. CSF, cerebrospinal fluid. TBI, traumatic brain injury. CNS, central nervous system. ICH, intracerebral hemorrhage. CCI, Charlson comorbidity indexBack to article page