Frailty prevalence and factors associated with the Frailty Phenotype and Frailty Index: Findings from the North West Adelaide Health Study

Mark Q. Thompson, Olga Theou, Solomon Yu, Robert J. Adams, Graeme R. Tucker, Renuka Visvanathan

Research output: Contribution to journalArticle

19 Citations (Scopus)


Objective: To determine the prevalence of frailty and associated factors in the North West Adelaide Health Study (2004–2006) using the Frailty Phenotype (FP) and Frailty Index (FI). Methods: Frailty was measured in 909 community-dwelling participants aged ≥65 years using the FP and FI. Results: The FP classified 18% of participants as frail and the FI 48%. The measures were strongly correlated (r = 0.76, P < 0.001) and had a kappa agreement of 0.38 for frailty classification, with 37% of participants classified as non-frail by the FP being classified as frail by the FI. Being older, a current smoker, and having multimorbidity and polypharmacy were associated with higher frailty levels by both tools. Female, low income, obesity and living alone were associated with the FI. Conclusion: Frailty prevalence was higher when assessed using the FI. Socioeconomic factors and other health determinants contribute to higher frailty levels.

Original languageEnglish
Pages (from-to)120-126
Number of pages7
JournalAustralasian Journal on Ageing
Issue number2
Publication statusPublished - Jun 2018


  • Australia
  • cohort studies
  • epidemiologic measurements
  • frail older adults
  • prevalence

ASJC Scopus subject areas

  • Community and Home Care
  • Geriatrics and Gerontology

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