Table 4.

Mean FFI score and test–retest reliability of Iranian FFI subscales assessed

FFI domains	FFI score		ICC(95%)CI	P
	First assessment	Second assessment
pain	4.74±2.14	5.04±1.94	0.91(0.76-0.96)	<0.001
disability	5.54±2.37	5.73±2.40	0.87(0.67-0.95)	<0.001
Activity limitation	2.96±1.61	3.44±1.59	0.73(0.28-0.9)	0.005
Total	4.42±1.65	4.73±1.71	0.84(0.58-0.94)	<0.001