Cognitively Impaired Older Persons' and Caregivers' Perspectives on Dementia-Specific Advance Care Planning.

Even among patients with early cognitive impairment seen in specialty clinics and their caregivers, most were unaware of the decisions they could face, and there were many barriers to planning for these decisions. These issues would likely be magnified in more representative populations, and highlight challenges to the use of dementia-specific advance directive documents.