Interview- and questionnaire-based surveys on elderly patients' wishes about artificial nutrition and hydration during end-of-life care.

Aim: To promote advance directives, it is crucial to understand how many older persons have wishes related to end-of-life care. Additionally, it is important to understand how cognitive function or mood affect these wishes.

Methods: For the interview-based survey, 99 inpatients aged 75 years or older were enrolled after excluding patients with a Mini-Mental State Examination score of 20 or less.