Cross-Cultural Adaptation and Validation of the Hong Kong Version of the Knee Injury and Osteoarthritis Outcome Score (HK-KOOS) for Patients with Knee Osteoarthritis

Table 3

Reliability indices of the HK-KOOS subscales ().

KOOS subscale	The 1st attempt	The 2nd attempt	Difference	ICC^a (95% CI)	SEM^b	MDC95^c
	Mean (SD)	Mean (SD)	Mean (SD)
Pain	17.69 (6.11)	16.97 (6.25)	-0.71 (4.32)	0.86 (0.72, 0.93)	2.34	6.48
Symptoms	14.00 (5.25)	12.89 (4.90)	-1.11 (3.45)	0.86 (0.72, 0.93)	1.83	5.09
ADL	27.00 (11.85)	25.89 (12.56)	-1.11 (8.31)	0.88 (0.77, 0.94)	4.34	12.06
Sport/recreation	13.94 (4.15)	13.43 (4.20)	-0.51 (3.63)	0.78 (0.55, 0.89)	3.33	6.45
QoL	9.49 (2.84)	9.26 (2.84)	-0.23 (2.46)	0.76 (0.52, 0.88)	1.39	3.86

^aIntraclass correlation coefficient. ^bStandard error measurement. ^cMinimal detectable change with 95% confidence.