Test-retest Reliability and Inter-rater Reliability of Numerical Rating Scale for Abnormal Sensation Points of Patients with Spinal Cord Injury / 中国康复理论与实践

ABSTRACT

Objective:To investigate the test-retest reliability and inter-rater reliability of Numerical Rating Scale (NRS) for abnormal sensation points of patients with spinal cord injury (SCI). Methods:From October, 2016 to December, 2018, 69 patients with SCI were enrolled. Their impaired sensory points were measured with NRS. The score of sensory points was tested by examiner A firstly, and examiner B did the same work next day. Then, the examiner A retested the same patients after three weeks. Results:The Pearson correlation coefficients and intraclass correlation coefficient (ICC) of the test-retest reliability and inter-rater reliability for sensory score of both sides were all above 0.88 and 0.93 respectively (P < 0.001). The Pearson correlation coefficients and ICC of the sensory score of the different injury levels were all above 0.88 and 0.93 respectively (P < 0.001). Conclusion:NRS has high test-retest reliability and inter-rater reliability for the assessment at abnormal sensation points of patients with SCI.