Journal
ARCHIVES OF GERONTOLOGY AND GERIATRICS
Volume 78, Issue -, Pages 203-212Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.archger.2018.05.024
Keywords
Frail individuals; Cross-cultural adaptation; Validation; Patient-reported outcomes
Categories
Funding
- Instituto de Salud Carlos III [PI14/01003, PI14/01905]
- Fondo Europeo de Desarrollo Regional - FEDER [RD06/0001/0000, RD06/0001/1009]
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Background: 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. Materials and methods: 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 (r(s)) 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. Results: 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 scaler(s) were 0.31-0.48. Social domain r(s) were < 0.30. The TFI differentiated frail and no-frail subjects, but test-retest variation was considerable. Discussion: TFI applicability at different social contexts and frailty stages are worth of additional study. Certain scale aspects should be reconsidered.
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