Purpose Of the Study: (1) To identify the main predictors of the emotional state of the frail elderly at the end-of-life and that of their primary family caregivers, taking into consideration the presence/absence of significant cognitive impairment in the patient and (2) to analyse the relationship between the emotional state of the patient and that of their primary family caregiver.; Methods: Our study is cross-sectional. 85 frail elderly patients at the end-of-life and their primary family caregivers participated.