Objectives
The behavioral and psychological symptoms associated with dementia (BPSD) are highly burdensome to caregivers. While BPSD consist of a wide variety of patient behaviors including depression, physical aggression and paranoid delusions, it remains unclear whether specific symptoms have a differential impact on caregivers. The aims of this study were (1) to assess how individual BPSD symptoms, categorized based on how they may affect caregivers, impact depressive symptoms for dementia patient caregivers and (2) to test the pathways by which BPSD symptom clusters impact caregiver depressive symptoms.
Design
Cross-sectional analysis of data from a longitudinal study of patients with Alzheimer’s disease and Dementia with Lewy Bodies.
Setting
Multiple U.S. dementia clinics.
Participants
160 patient-caregiver dyads.
Methods
Using multivariate GEE logistic models, we analyzed the relationship between four BPSD symptom clusters (patient depressive symptoms, accusatory/aggressive behaviors, non-threatening psychotic symptoms, and difficult to manage behaviors) and caregiver depressive symptoms and assessed mediators of these relationships.
Results
Only the presence of patient depressive symptoms was associated with caregiver depression (OR=1.55; 95% CI=1.14–2.1). This relationship was mediated by both caregiver report of the symptom’s impact on the patient and perceived burden to caregivers.
Conclusions
Patient depressive symptoms may be the most important driver of the relationship between BPSD and caregiver depression. Research in this field should further test the effects of individual BPSD symptoms and should also consider how symptoms may negatively impact caregivers by increasing burden and evoking empathy for the patient.