Turkish translation, cross-cultural adaptation, and assessment of psychometric properties of the Functional Status Score for the Intensive Care Unit

Buse Ozcan Kahraman; Ismail Ozsoy; Turhan Kahraman; Aylin Tanriverdi; Serap Acar; Ebru Ozpelit; Bahri Akdeniz; Stephanie Hiser; Fernando Silva Guimaraes; Dale M Needham; Sema Savci

doi:10.1080/09638288.2019.1602852

Turkish translation, cross-cultural adaptation, and assessment of psychometric properties of the Functional Status Score for the Intensive Care Unit

Disabil Rehabil. 2020 Oct;42(21):3092-3097. doi: 10.1080/09638288.2019.1602852. Epub 2019 Apr 25.

Authors

Affiliations

¹ School of Physical Therapy and Rehabilitation, Dokuz Eylül University, Izmir, Turkey.
² School of Physical Therapy and Rehabilitation, Kirsehir Ahi Evran University, Kirsehir, Turkey.
³ Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Izmir Katip Celebi University, Izmir, Turkey.
⁴ Graduate School of Health Sciences, Dokuz Eylül University, Izmir, Turkey.
⁵ Department of Cardiology, Faculty of Medicine, Dokuz Eylül University, Izmir, Turkey.
⁶ Department of Physical Medicine and Rehabilitation, The Johns Hopkins Hospital, Baltimore, MD, USA.
⁷ Department of Physical Therapy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
⁸ Division of Pulmonary & Critical Care Medicine and Department of Physical Medicine & Rehabilitation, Johns Hopkins University, Baltimore, MD, USA.

PMID: 31020855
DOI: 10.1080/09638288.2019.1602852

Abstract

Purpose: To translate and cross-culturally adapt the Functional Status Score for the Intensive Care Unit instrument to Turkish and investigate its psychometric properties.Methods: An expert committee supervised forward and backward translation. Thirteen participants reviewed the pre-final version of Turkish Functional Status Score for the Intensive Care Unit instrument providing minor revisions to improve its readability. Two physiotherapists assessed patients (N = 50) from a coronary intensive care unit using the Turkish Functional Status Score for the Intensive Care Unit instrument.Results: Internal consistency was excellent (Cronbach's α = 0.949). Inter-rater reliability and intra-rater reliability were excellent for each of five functional tasks and total scores (intra-class correlation coefficient = 0.955-0.996). The Turkish Functional Status Score for the Intensive Care Unit score had moderate to high correlations with other functional measures as follows: Perme Intensive Care Unit Mobility Score (Spearman's r = 0.92), Katz Activities of Daily Living (r = 0.80), handgrip strength (r = 0.76-0.77), and knee extension strength (r = 0.70-0.71).Conclusion: The Functional Status Score for the Intensive Care Unit instrument was translated and culturally adapted to Turkish and demonstrated strong psychometric properties, including internal consistency, intra-rater and inter-rater reliability, construct validity, and floor and ceiling effects.Implications for rehabilitationRehabilitation professionals strive to assess and document patient status using validated and reliable outcome measures as part of good clinical practice.Longitudinal evaluation of physical function in the intensive care units is important.The Functional Status Score for the Intensive Care Unit is a validated and reliable physical functioning measurement instrument suitable for the intensive care units.The Functional Status Score for the Intensive Care Unit was translated and culturally adapted to Turkish, and demonstrated strong psychometric properties, including internal consistency, intra-rater reliability, inter-rater reliability, construct validity, and floor and ceiling effects.

Keywords: Functional status; Turkish; intensive care unit; reliability; validity.

MeSH terms

Activities of Daily Living*
Cross-Cultural Comparison*
Functional Status
Hand Strength
Humans
Intensive Care Units
Psychometrics
Reproducibility of Results
Surveys and Questionnaires
Translations