An investigation into the validity and reliability of the Chinese version of Spinal Cord Independence Measure III (SCIM III).

Objective: To investigate the validity and reliability of a Chinese version of Spinal Cord Independence Measure III (SCIM III) in individuals with spinal cord injury.

Methods: Study on psychometric properties. Methods: An inpatient rehabilitation facility in China. Methods: 102 participants with spinal cord injury. Mean (SD) age was 48.8 (15.6) years; tetraplegia/paraplegia ratio was 50/52; median time post injury was 2 months. Methods: SCIM III was translated into Chinese. Chinese versions of Barthel Index and SCIM III were filled out for each participant by Rater 1. SCIM III was then administered by Rater 2 after 24 hours (n = 67) and 7 days (n = 65). Methods: Validity, inter-rater/test-retest reliability, and internal consistency of the Chinese version of SCIM III.

Results: The total scores between the two raters were similar (mean ± SD: 33.8 ± 25.8 vs 33.8 ± 25.5, P = 0.95). Total agreement between the raters in each item was >80%, with both Pearson and intraclass correlation coefficients >0.97 (P < 0.01) for each subscale and total score. The Pearson correlation coefficients of the two independent assessments performed by Rater 2 were also >0.97 (P < 0.01) for each subscale and the total score. Cronbach α was >0.7 for each subscale and the total score for both raters. High consistency was found between Barthel Index and SCIM III total scores (Pearson correlation coefficient = 0.88, P < 0.01).

Conclusions: The Chinese version of SCIM III is valid and reliable for the functional assessment of patients with SCI.