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Cross-cultural adaptation and reliability testing of the Tilburg Frailty Indicator for optimizing care of Polish patients with frailty syndrome

Authors Uchmanowicz I, Jankowska-Polańska B, Łoboz-Rudnicka M, Manulik S, Łoboz-Grudzień K, Gobbens RJJ

Received 26 March 2014

Accepted for publication 25 April 2014

Published 25 June 2014 Volume 2014:9 Pages 997—1001

DOI https://doi.org/10.2147/CIA.S64853

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Izabella Uchmanowicz,1 Beata Jankowska-Polańska,1 Maria Łoboz-Rudnicka,2 Stanislaw Manulik,3 Krystyna Łoboz-Grudzień,1,2 Robbert JJ Gobbens4

1Department of Clinical Nursing, Wroclaw Medical University, 2Department of Cardiology, T Marciniak Memorial Hospital, 3Primary Care Practice, Wroclaw, Poland; 4Research and Development Center Innovations in Care, Rotterdam University of Applied Sciences, Rotterdam, the Netherlands

Background: Frail older people are at high risk of developing adverse outcomes, such as disability, mortality, hospitalization, and institutionalization. Previous research suggests that the Tilburg Frailty Indicator (TFI) is a valid and reliable instrument for measuring frailty. The aim of this study was to adapt and to test the reliability of the Polish version of the TFI.
Method: A standard guideline was used for translation and cultural adaptation of the English version of the TFI into Polish. The study included 100 Polish patients (mean age 68.2±6.5 years), among them 42 men and 58 women. Cronbach’s alpha was used for analysis of the internal consistency of the TFI.
Results: The mean total TFI score was 6.7±3.1. Forty patients scored ≥5, which corresponded to being frail. Cronbach’s alpha reliability coefficients of the instrument ranged from 0.68 to 0.72 and item-total correlation ranged from 0.12 to 0.52.
Conclusion: The TFI is valid and reproducible for assessment of frailty syndrome among a Polish population. The Polish adaptation of the TFI proved a useful and fast tool for assessing frailty.

Keywords: internal consistency, validity, older individuals, aging

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