Psychology Health & Medicine · 2017 · 34 citations · 28 references
MedicineHealth SciencesAgingFrailtyGerontologyFrailty AssessmentFrailty IndexAge-related FrailtyDepression SymptomsFrailty Index Outcomes PredictionFrailty Index PredictionFrailty Index ScoringLikert Scale DesignLinear RegressionMultiple Regression
Older adults' negative beliefs about ageing are related to their health and functioning, but little is known about how perceptions of ageing (POA) relate to frailty status. This study aimed to explore the relationship between POA and frailty. Secondary analysis of data used were from the English Longitudinal Study of Ageing Waves 2 and 5. A POA score was based on participants' responses to 12 statements using a five-point Likert scale at baseline, and a Frailty Index (FI) score was calculated for each participant for both waves. Multiple linear regression models were conducted to assess the relationship between POA and frailty cross-sectionally and longitudinally in models controlled for age, gender, depression symptoms, and socioeconomic status. Older adults with more negative POA had greater frailty (β = .12, p < .001). Negative POA predicted greater frailty 6 years later (β = .03, p < .05). Future work regarding the mechanisms of this relationship is needed to identify ways of intervening to improve health.
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Statistical Power Analysis for the Behavioral Sciences
Keith E. Muller, Jacob Cohen · Technometrics · 1989 · 83.9K citations
Frailty in Older Adults: Evidence for a Phenotype
Linda P. Fried, Catherine M. Tangen, Jeremy Walston et al. · The Journals of Gerontology Series A · 2001 · 24.5K citations · Full text
The handbook of psychological testing
Choice Reviews Online · 1993 · 3.6K citations
A standard procedure for creating a frailty index
Samuel D. Searle, Arnold Mitnitski, Evelyne A. Gahbauer et al. · BMC Geriatrics · 2008 · 3.6K citations · Full text
Medicine, Geriatric Medicine, Aging +15