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Japanese version of the Family Stigma Instrument for informal caregivers of people with dementia

Noguchi, T.; Bhatt, J.; Komatsu, A.; Watanabe, R.

2026-03-20 psychiatry and clinical psychology
10.64898/2026.03.12.26348133 medRxiv
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INTRODUCTION: Overcoming dementia-related stigma is a global challenge, but tools to assess stigma among family caregivers of people living with dementia remain limited. This study examined the validity and reliability of the Japanese version of the Family Stigma Instrument for family caregivers of people living with dementia (J-FAMSI-dementia), originally developed in the United Kingdom. METHODS: A total of 372 informal caregivers aged 18 to 79 years of family members living with dementia completed an internet survey. The J-FAMSI-dementia comprises five subscales (stigma by association; perceived, affective, and behavioral affiliate stigma; and positive aspects of caregiving), developed through forward and back translations. RESULTS: Confirmatory factor analysis supported an acceptable five-factor model. All subscales showed high internal consistency and moderate to good test-retest reliability. Correlations with dementia attitude, caregiving burden, and depressive symptoms supported construct validity. DISCUSSION: The J-FAMSI-dementia demonstrated acceptable validity and reliability and may help identify dementia-related stigma among family caregivers.

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