Table 1 Inclusion and exclusion criteria for the study

• Age ≥ 18 years

• Coma

• Acute stroke or transient ischemic attack

• Patients with brain tumor

• Admission to the hospital within 48 hours of symptoms onset

• Alcohol withdrawal delirium

• Language: Polish

• Cerebral venous thrombosis

• Written informed consent by patient or legal guardian

• Subarachnoid hemorrhage

• Trauma

• Diseases with life expectancy less that one year e.g. malignancy

• Vasculitis