Cross-Cultural Validation of Urdu Version KOOS in Indian Population with Primary Knee Osteoarthritis

Table 2

Test-retest reliability and internal consistency of five KOOS subscales in Urdu version ().

Subscale	Test	Retest	ICC	Cronbach’s alpha
	Mean ± SD	Mean ± SD
Pain	44.34 ± 16.08	44.79 ± 15.92	0.9782	0.8799
Symptom	51.10 ± 15.22	51.59 ± 14.65	0.9673	0.7889
ADL	47.98 ± 12.93	47.94 ± 12.84	0.9855	0.9139
Sports/rec	35.59 ± 14.25	35.59 ± 13.80	0.9705	0.7563
QOL	34.05 ± 18.51	34.41 ± 18.28	0.9685	0.7246