Blood Biomarkers for Alzheimer Disease and Neuro-injury to Estimate the Association With Cognitive/Functional Decline and Mortality in a Real-world Population of GERiatric Hospitalized Patients (BAD-GER)

GROUP 1: Patients hospitalized for acute neurological disorders Inclusion criteria: * Inpatients with one of the following diagnoses: ischemic or hemorrhagic stroke, delirium, status epilepticus, encephalitis/meningitis Exclusion criteria: * no informed consent GROUP 2: Patients hospitalized for non-neurological diseases with dementia Inclusion criteria: * inpatients with diagnosis of major neurocognitive disorder according to DSM-5 criteria (2013) Exclusion criteria: * Inpatients with one of the following diagnoses: ischemic or hemorrhagic stroke, delirium, status epilepticus, encephalitis/meningitis * no informed consent GROUP 3: Patients hospitalized for non-neurological diseases without dementia Inclusion criteria: * inpatients with non-neurological diseases Exclusion criteria: * inpatients with one of the following diagnoses: ischemic or hemorrhagic stroke, delirium, status epilepticus, encephalitis/meningitis * diagnosis of dementia * no informed consent