Cross-cultural adaptation and psychometric testing of the Thai version of the Spinal Cord Independence Measure III—Self Report

Abstract

Study design

Cross-sectional reliability and validation study.

Objective

To translate and assess the psychometric properties of the Thai version of the Spinal Cord Independence Measure III—Self Report (TH-SCIM-SR) in Thai spinal cord injury (SCI) patients.

Setting

Faculty of Medicine Siriraj Hospital, Mahidol University.

Methods

A cross-cultural forward and backward translation of the original Spinal Cord Independence Measure III—Self Report (SCIM-SR) was performed at the Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand, to create the TH-SCIM-SR. The inclusion criteria were Thai patients with SCI duration of ≥3 months. Patients were evaluated by a team of healthcare professionals using the Thai version of the Spinal Cord Independence Measure Version III (TH-SCIM III). Study patients subsequently completed the TH-SCIM-SR two times with a 3-day interval between evaluations. Cronbach’s Alpha, Pearson’s correlation coefficient, and intraclass correlation coefficient (ICC) were used to examine internal consistency, concurrent validity, and reliability, respectively. Bland–Altman plot was used to compare scoring results between the TH-SCIM III and the TH-SCIM-SR.

Results

Thirty-two patients were included. Cronbach’s alpha of total score, self-care subscale, respiration/sphincter management, and mobility subscale were 0.91, 0.94, 0.75, and 0.90, respectively. The reliability analysis showed good reliability. The test–retest ICC of total score, self-care subscale, respiration/sphincter management, and mobility subscale were 0.95, 0.95, 0.78, and 0.96, respectively. Regarding construct validity, the subscales of TH-SCIM-SR demonstrated a strong correlation with those of the TH-SCIM III (0.85–0.96).

Conclusions

TH-SCIM-SR showed good reliability and validity for assessing functional independence in Thai patients with SCI.

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Fig. 1: Agreement between tests for the total and subscale scores, as analyzed by the Bland–Altman method.

Data availability

The datasets generated and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

The authors gratefully acknowledge the patients that joined this study, Dr. Christine Fekete, for granting us permission to translate the SCIM-SR; and Dr. Jirabhorn Wannapakhe for permission to use the TH-SCIM III. The authors also wish to thank Miss Nhathita Panatreswas for statistical analysis and for assisting with the journal submission process.

Funding

This study was funded by a grant from the Faculty of Medicine Siriraj Hospital, Mahidol University (grant no. (IO)R015932036).

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Authors

Contributions

SW and PL designed the research questions. NT and PK collected and analyzed the data, PL and BS drafted the manuscript. BS and SW wrote the final version of the manuscript. SC and CC designed the research questions and commented on the final version of the manuscript.

Corresponding author

Correspondence to Panya Luksanapruksa.

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The authors declare that they have no conflict of interest.

Ethical approval

The study protocol was approved by the Institutional Ethics Committee of the Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand. The study number is 234/2557(EC3). The authors certify that all applicable institutional and governmental regulations concerning the ethical use of human volunteers were followed during all courses of this study.

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Wilartratsami, S., Luksanapruksa, P., Santipas, B. et al. Cross-cultural adaptation and psychometric testing of the Thai version of the Spinal Cord Independence Measure III—Self Report. Spinal Cord (2020). https://doi.org/10.1038/s41393-020-00556-7

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