Exploring expressed emotion and its influencing factors among family caregivers of dementia people: a 3-month study in Japan

Background: Family caregivers of dementia patients face significant challenges, including managing their own emotional responses. Understanding factors influencing expressed emotion (EE) is crucial for effective support interventions. The aim of this study was to explore and describe changes in EE among family caregivers of dementia and its associated factors at different time points over 3 months.

Methods: A 3-month observational study was conducted in Japan. We collected demographically detailed data on family caregivers currently providing care, including care burden, relationship closeness, and depression. We assessed EE using the validated Family Attitude Scale (FAS). After adjustment for multiple confounding factors, multivariate linear regression analysis was performed to assess factors affecting EE at various time points. Linear regression analysis with generalised estimating equations was used to assess associations between 3-month time-varying EE and burden, intimacy, and depression.

Results: Fifty-six family caregivers completed the study. Changes in FAS scores did not show statistical differences over 3 months. It is worth noting that the degree of relationship closeness and care burden are important influencing factors of EE in both cross-sectional analysis and longitudinal analysis.

Conclusions: Early identification of risk factors can aid in developing interventions aimed at preventing high levels of EE in the dementia family, thereby mitigating their detrimental effects. Tailored interventions are essential to enhance caregiver well-being and cultivate positive caregiver-patient relationships.