Loneliness as a Predictor of Disability in Older Adults: Implications of the UCLA Loneliness Scale Cutoff Score Across Cultural Contexts.

Background: This letter responds to the study by Tomida et al. (2024) that validates the optimal cutoff score for the UCLA Loneliness Scale (UCLA-LS) to predict disability among older Japanese adults. The study identifies a cutoff score of 44, providing a significant indicator for the early detection of at-risk individuals.