Portuguese version of the Tilburg Frailty Indicator: Transcultural adaptation and psychometric validation

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Coelho, T (Author) Other; Santos, R (Author) Other; Constança Paúl (Author) ICBAS; Gobbens, RJJ (Author) Other; Lia Fernandes (Author) FMUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: GERIATRICS & GERONTOLOGY INTERNATIONAL

Vol. 15

Pages: 951-960

ISSN: 1444-1586

Indexing

ISI Web of Knowledge - 53 Citations

Scopus - 59 Citations

Other information

Authenticus ID: P-00G-EJB

DOI: 10.1111/ggi.12373

Abstract (EN): AimTo present the translation and validation process of the Portuguese version of the Tilburg Frailty Indicator (TFI). MethodsA cross-sectional study was designed using a non-probability sample of 252 community-dwelling older adults. Preliminary studies were carried out for face and content validity assessment. Internal consistency, test-retest reliability, construct (convergent/divergent) and criterion validity were subsequently analyzed. ResultsThe sample was mainly women (75.8%), with a mean age of 79.27.3years. TFI internal consistency was good (KR-20=0.78). Test-retest reliability for the total was also good (r=0.91), with kappa coefficients showing substantial agreement for most items. TFI physical and social domains correlated as expected with concurrent measures, whereas the TFI psychological domain showed similar correlations with other psychological and physical measures. The TFI showed a good to excellent discrimination ability in regard to frailty criteria, and fair to good ability to predict adverse outcomes. ConclusionsThe psychometric properties of the TFI seem to be consistently good. These findings provide initial evidence that the Portuguese version is a valid and reliable measure for assessing frailty in the elderly. Geriatr Gerontol Int 2015; 15: 951-960.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10