Psychometric properties of the Tilburg Frailty Indicator in older Spanish people

Archives of Gerontology and Geriatrics
Kalliopi VrotsouItziar Vergara

Abstract

The Tilburg Frailty Indicator (TFI) is a 15-item scale. It diagnoses frailty in the elderly based on three domains: physical, psychological and social. A Spanish cross-cultural adaptation and its psychometric properties are presented here. Independent, non-institutionalized ≥70 year-olds were recruited. The TFI structure was assessed with Kuder-Richardson (KR-20) and confirmatory factor analyses. Sperman´s correlations (rs) with Timed Up-and-Go, Self-assessed-health, Fried criteria, Short Physical Performance Battery, Gerontopole Frailty tool, assessed convergent validity. Known groups' validity and test-retest reliability were tested. Based on n = 856 participants, domain and total scale KR-20 were <0.70. The social domain and certain physical items did not fit adequately. Most physical and total scalers were 0.31-0.48. Social domain rs were <0.30. The TFI differentiated frail and no-frail subjects, but test-retest variation was considerable. TFI applicability at different social contexts and frailty stages are worth of additional study. Certain scale aspects should be reconsidered.

Citations

Apr 30, 2019·PloS One·Jossiana Wilke FallerSilvia Matumoto
May 28, 2021·Clinical Interventions in Aging·Robbert J Gobbens, Izabella Uchmanowicz
May 11, 2020·Journal of the American Medical Directors Association·Xuxi ZhangHein Raat

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