Inclusion Criteria:  Having applied to the Gulhane Training and Research Hospital Geriatrics Polyclinic Being diagnosed with Alzheimer or Lewy Body Dementia or Vascular Dementia or Fronto-Temporal Dementia or Parkinson Disease Dementia Being at the age of 60 years or older  Exclusion Criteria:  Being under the age of 60 Patients with insufficient recorded data and follow-up for the study Patients who either have diagnosis or follow-up in another center. Patients who have severe dementia that prevents applying for outpatient clinic