Abstract
AbstractObjectiveIn Alzheimer's disease (AD), the burden on caregivers is influenced by various factors, including the stage of disease progression and neuropsychiatric symptoms (NPS). To date, there has been limited research examining how patient's premorbid personality could affect this burden. The objective of this study was to investigate the impact of both premorbid personality and NPS in individuals with prodromal to mild AD on their caregivers' burden.MethodOne hundred eighty participants with prodromal or mild AD drown from the PACO (in French: Personnalité Alzheimer COmportement) cohort were included. Personality was assessed by the Revised NEO Personality Inventory (NEO‐PI‐R). Neuropsychiatric symptoms were measured with the short version of the Neuropsychiatric Inventory (NPI‐Q), and caregiver burden was evaluated with the Zarit burden scale. Relationships between personality, Neuro‐Psychiatric Inventory (NPI) scores, and caregiver burden were determined using multivariate linear regressions controlled for age, sex, educational level, and Mini Mental State Examination.ResultsThe total NPI score was related to increased burden (beta = 0.45; p < 0.001). High level of neuroticism (beta = 0.254; p = 0.003) et low level of conscientiousness (beta = ‐ 0.233; p = 0.005) were associated higher burden. Extraversion (beta = −0.185; p = 0.027) and conscientiousness (beta = −0.35; p = 0.006) were negatively associated with burden. In contrast, neuroticism, openness and agreeableness were not correlated with burden. When adjusted on total NPI score, the relationship between extraversion and conscientiousness didn't persist.ConclusionOur results suggest that premorbid personality of patients with prodromal to mild Alzheimer influence caregivers's burden, with a protective effect of a high level of extraversion and conscientiousness.
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