Psychometric validation of the Portuguese ALONE scale and analysis of factors associated with severe loneliness in a sample of community-dwelling older adults.

Objectives: Severe loneliness poses a significant risk to older adults' health and quality of life. This study assessed the psychometric properties (reliability and validity) of the Portuguese version of the ALONE scale in community-dwelling older adults and explored the scale's associations with sociodemographic, social isolation, depression, life satisfaction, and daily functioning.

Method: A descriptive, correlational study was conducted with 285 Portuguese older adults.