The Developmental Process of Late-Onset Alcohol Use Disorder Among Older Adults in Japan: A Multiple Case Study Focusing on Life Stories and Cultural Influences

Understanding late-onset alcohol use disorder (AUD) requires examining individuals’ life histories and their relationship with alcohol. Few studies, however, have detailed the developmental process of late-onset AUD. This multiple case study explored the life stories and cultural influences of four older Japanese adults diagnosed with late-onset AUD. Life story interviews traced their experiences from childhood to the present. Commonalities emerged regarding early drinking and feelings of existential emptiness, while diverse family relationships and patterns of progression of the disorder were observed. These findings have important implications for developing more effective support strategies for older patients, particularly within Japan’s unique drinking culture.