Cross-Cultural Adaptation and Clinimetric Testing of Functional Rating Index (FRI) Outcome Measure into the Arabic Language
Table 3
Reliability of the FRI-Ar.
FRI-Ar
ICC2,1 (95% CI)
SEM
MDC95%
Pain intensity
0.84 (0.78-0.89)
0.12
0.33
Sleeping
0.90 (0.86-0.93)
0.19
0.53
Personal care
0.86 (0.81-0.90)
0.13
0.36
Travel
0.67 (0.56-0.76)
0.14
0.39
Work
0.93 (0.91-0.95)
0.19
0.53
Recreation
0.86 (0.81-0.90)
0.19
0.53
Frequency of pain
0.92 (0.89-0.94)
0.14
0.39
Lifting
0.77 (0.69-0.84)
0.16
0.44
Walking
0.87 (0.82-0.91)
0.21
0.58
Standing
0.90 (0.86-0.93)
0.20
0.55
Total
0.85 (0.74-0.91)
1.17
3.24
Abbreviations: CI: confidence interval; ICC: intraclass correlation coefficient; FRI-Ar: Arabic version of Functional Rating Index; SEM: standard error of measurement.