Frailty is a prevalent geriatric syndrome. Little is known about the psychological factors associated with this syndrome. Based on four large samples of older adults aged from 65 to 104 years old, the present study examined whether personality traits are related to frailty. High neuroticism, low conscientiousness, low extraversion, low openness and low agreeableness were related to higher frailty across samples. Longitudinal analysis conducted in one sample revealed that high neuroticism was associated with worsening frailty over an 8-year period. Higher frailty at baseline and over time was related to maladaptive personality changes. This study extends existing knowledge on the link between personality and health in older adults, by identifying the personality traits associated with frailty, a complex geriatric syndrome.
KeywordsFrailty; personality; aging Frailty is a heterogeneous geriatric syndrome characterized by decreased physiological reserve and higher vulnerability to stressors (Fried et al., 2001). The core components of frailty include impaired physical function, such as slower gait speed and less strength, metabolic dysfunction that results in loss of muscle mass, and fatigue, low energy, and exhaustion (Buchman, Schneider, Leurgans, & Bennett, 2008; Fried et al., 2001). The prevalence of this syndrome increases with age, with up to half of individuals over 85 estimated as frail (Clegg, Young, Lliffe, Rikkert, & Rockwood, 2013). Individuals with frailty are at a greater risk of falls (Ensrud et al., 2007), limitations in activities of daily living (Nourhashémi et al., 2001), steeper cognitive decline (Boyle, Buchman, Wilson, Leurgans, & Bennett, 2010), Alzheimer's disease (Buchman, Boyle, Wilson, Tang, & Bennett, 2007;Buchman et al., 2008) and mortality (Buchman, Wilson, Bienias, & Bennett, 2009). Given these implications, the identification of factors associated with this syndrome is of crucial importance. Most attention has been directed toward the biological processes involved in frailty (Buchman et al., 2008;Buchman et al., 2014); less is known about how psychological variables are associated with it. There is, however, some evidence that links
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Author ManuscriptAuthor Manuscript frailty or its components with psychological factors, such as positive affect, psychological well-being, and perceived control (e.g., Gale, Cooper, Deary, & Sayer, 2014;Infurna & Gerstorf, 2014;Park-Lee, Fredman, Hochberg, & Faulkner, 2009). Building on these findings, the present study examined whether personality traits are associated with an index of frailty.Theoretical models of personality and health recognize that concurrent associations are likely the result of reciprocal relations between personality and health-related factors, such as frailty. To better identify the temporal relation between personality and frailty, we used longitudinal data to test whether (a) personality traits are risk factors for the incidence or worsening of frailty and (b) whet...