Operationalizing Frailty Using the Frailty Phenotype and Deficit Accumulation Approaches

Olga Theou, Jeremy Walston, Kenneth Rockwood

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


In both demographic and clinical studies, frailty is understood as a multidimensional state of increased vulnerability compared with the status of others of the same age. Of the many theoretical definitions of frailty, two are commonly employed: the physical frailty/phenotypic approach and the deficit accumulation approach. The purpose of this chapter is to discuss how frailty is conceptualized and operationalized based on these two approaches.

Original languageEnglish (US)
Pages (from-to)66-73
Number of pages8
JournalInterdisciplinary Topics in Gerontology and Geriatrics
StatePublished - 2015

ASJC Scopus subject areas

  • Aging
  • Geriatrics and Gerontology


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