Spouse caregivers and behavioral and psychological symptoms of dementia

The effects of caregiver characteristics on behavioral and psychological symptoms of dementia of patients with dementia

OBJECTIVE

To determine the association between caregiver characteristics and behavioral and psychological symptoms of dementia (BPSD) in patients with dementia (PWD) in a Taiwanese community-dwelling population.

METHODS

This cross-sectional study was conducted using the data of 190 patients with Alzheimer's disease/dementia and 190 informal matched caregivers in Taiwan. BPSD were examined using the Neuropsychiatric Inventory-Questionnaire (NPI-Q). Correlation and regression analyses were used to explore associations between caregiver characteristics and the presence, severity, and distress of NPI-Q items.

RESULTS

Only spouse primary caregiver was positively associated with presence of delusions in PWD. Caregiver education was positively correlated to severity of hallucinations, agitation/aggression, and apathy/indifference in PWD, while child primary caregiver was positively related to severity of disinhibition in PWD but negatively related to severity of anxiety in PWD. Spouse primary caregiver was positively related to severity of anxiety and appetite/eating in PWD while sole primary caregiver was positively related to severity of anxiety and nighttime behaviors in PWD. Caregiver education was positively correlated to distress of agitation/aggression in caregivers while child primary caregiver was positively related to distress of disinhibition in caregivers. Spouse primary caregiver was positively related to distress of anxiety and appetite/eating in caregivers while spouse caregiver was positively related to distress of nighttime behaviors in caregivers.

CONCLUSIONS

Caregiver education, child and spouse primary caregiver were relevant to severity of PWD and distress of caregivers of BPSD. It is suggested that healthcare professionals provide caregivers with proper individualized interventions based on these results to enhance caring quality.Key pointsCaregiver education was positively correlated to severity of hallucinations, agitation/aggression, and apathy/indifference, and distress of agitation/aggression.Child primary caregiver was positively related to severity and distress of disinhibition but negatively related to severity of anxiety.Spouse primary caregiver was positively related to severity and distress of anxiety and appetite/eating, and distress of nighttime behaviors.

Alzheimer's disease patients institutionalized in group homes run by long-term care insurance exhibit fewer symptoms of behavioural problems as evaluated by the Behavioural Pathology in Alzheimer's Disease Rating Scale

BACKGROUND

The behavioural and psychological symptoms of dementia (BPSD) caused by Alzheimer's disease (AD) can burden caregivers. Group homes (GH), small nursing homes, for the elderly with dementia are institutions commonly run by the public long-term care insurance system in Japan. The purpose of this study was to compare the prevalence of BPSD of AD, as evaluated by the Behavioural Pathology in Alzheimer's Disease Rating Scale, between GH patients and community residents.

METHODS

A total of 74 patients with AD were enrolled: 37 were patients institutionalized in GH (Hachinski score < 5) and 37 were demographic-matched community residents undergoing treatment at the Osaki-Tajiri SKIP Center. There were no significant differences in mean age (81.4 vs 81.1 years, P = 0.816), mean educational level (7.7 vs 8.0 years, P = 0.497), sex (women/men: 30/7 vs 30/7, P = 1.000) and mean Mini-Mental State Examination scores (14.1 vs 14.1, P = 0.950) between the two groups. Care level (range: 0.5-5.0, slight to bedridden), activities of daily living care level (range: 1-7, almost normal to severe), and the presence or absence BPSD based on the domains of the Behavioural Pathology in Alzheimer's Disease Rating Scale were compared.

RESULTS

GH patients had a significantly higher care level (P < 0.05) and activities of daily living care level (P < 0.05) but had fewer symptoms of BPSD (P < 0.05) than community residents. When the activities of daily living care level was controlled, GH patients had significantly fewer symptoms than community residents in Aggressiveness (21% vs 50%; χ² = 4.5, P = 0.035), Affective disturbances (13% vs 42%; χ² = 5.1, P = 0.023), and Anxieties and phobias (4% vs 46%; χ² = 11.1, P = 0.001).

CONCLUSIONS

GH run by the long-term care insurance system appear to be effective in improving environmental factors for moderate AD patients and reducing Aggressiveness, Affective disturbances, and Anxieties and phobias.