Cross-Cultural Adaptation and Clinimetric Testing of Functional Rating Index (FRI) Outcome Measure into the Arabic Language

Table 4

Pearson’s correlation among the instruments at baseline.

Instruments	FRI-Ar	RMDQ	ODI	PSFS	GPE	NPRS
FRI-Ar	1	0.62	0.65	-0.35	0.27	0.58
RMDQ	0.62	1	0.58	-0.29	0.27	0.36
ODI	0.65	0.58	1	-0.19	0.36	0.52
PSFS	-0.35	-0.29	-0.19	1	-0.21	-0.14
GPE	0.27	0.27	0.36	-0.21	1	0.36
NPRS	0.58	0.36	0.52	-0.14	0.36	1

Significant at 0.001 level.