Factors associated with health-related quality of life (HRQoL): differential patterns depending on age

Purpose The aims of this study were: (1) to analyze age differences in health-related quality of life (HRQoL) between the young old (aged 65–84) and the oldest old (aged 85 and over), and (2) to investigate three types of predictors: (a) physical health [Basic Activities of Daily Living (BADL), Instrumental Activities of Daily Living, comorbidity, use of medication], (b) global cognitive ability and (c) psychosocial factors, specifically personality traits, social support and emotional functioning (positive and negative affect and life satisfaction), which may influence the HRQoL of both the young old and the oldest old.