YOUNG AND LATE ONSET DEMENTIA: HOW DO THEY DIFFER IN TERMS OF DOMAINS OF AWARENESS?
Background: Young onset dementia (YOD) is a diagnosis given when the neurocognitive process sets in before 65 years age. The YOD dementia process poses specific challenges related to financial issues, work and social demands, marriage, and parenthood, including losses and shifting roles, care responsibilities, as well as prospects for the future. Those challenges might account for the difference in awareness between YOD and late onset dementia (LOD). Awareness can be defined as the recognition of changes caused by deficits related to the disease process, which may include the ability to recognize a specific deficit, the emotional response to the difficulties presented and the ability to understand the impact of the disease in activities of daily living Objectives: This study is designed to investigate differences in awareness of cognitive functioning and health condition, functional activity impairments, emotional state, and social functioning and relationships among people with young onset (YOD) and late onset dementia (LOD); and examine associations between awareness and its domains with cognition, functionality, neuropsychiatric symptoms, social and emotional functioning and quality of life (QoL) in both groups. Methods: This is a cross-sectional design study. A group of 136 people with dementia and their respective caregivers (YOD = 50 and LOD = 86) were consecutively selected from an Alzheimer’s disease outpatient unit in Rio de Janeiro, Brazil. We assessed awareness of disease, dementia severity, cognition, functionality, neuropsychiatric symptoms, social and emotional functioning, and quality of life. Results: People with YOD were more aware of disease (total score), more aware of their cognitive functioning and health condition and of their functional activity impairments than people with LOD, even if this group was more severely cognitive impaired and had a worse level of functionality than LOD group. Besides, people with YOD had more neuropsychiatric symptoms than people with LOD. Multivariate linear regressions showed that functionality has a wide relationship to awareness for people with YOD. While neuropsychiatric symptoms and quality of life has a greater relation to awareness for people with LOD. Conclusions Different clinical variables are associated to different domains in YOD and LOD groups, reinforcing the heterogeneity of awareness in dementia.