Construct validity and reliability of the Finnish version of the Knee Injury and Osteoarthritis Outcome Score

Table 3 Spearman’s correlation coefficients for comparisons of the five KOOS subscales with the three WOMAC subscales, eight SF-36 subscales, and the six Pain-NRS subscales

	KOOS Pain	KOOS Symptoms	KOOS ADL	KOOS Sport/Rec	KOOS QOL
WOMAC
Pain	0.81	0.37	0.65	0.52	0.54
Stiffness	0.60	0.48	0.79	0.62	0.46
Physical function	0.75	0.33	0.86	0.72	0.63
SF-36
Physical Functioning	0.70	0.43	0.83	0.67	0.66
General Health	0.11	0.25	0.39	0.13	0.10
Vitality	0.28	0.24	0.43	0.18	0.19
Mental Health	0.12	0.15	0.33	0.06	0.08
Role-Physical	0.39	0.34	0.58	0.36	0.30
Role-Emotional	0,41	0.22	0.60	0.29	0.23
Social Functioning	0.42	0.29	0.64	0.41	0.30
Bodily Pain	0.69	0.46	0.77	0.58	0.51
Pain-NRS
General	0.42	0.23	0.48	0.44	0.53
Back	0.19	0.17	0.37	0.16	0.33
Lower limb	0.37	0.37	0.61	0.41	0.37
Neck	0.09	0.05	0.35	0.07	0.21
Upper limb	0.18	0.39	0.57	0.28	0.33
Knee	0.66	0.46	0.68	0.50	0.53

All correlations over 0.27 were significant at 0.05 level; N = 59
KOOS Knee Injury and Osteoarthritis Outcome Score, ADL Activities of Daily Living, Sport/Rec Sport and Recreation Function, QOL Quality of Life, WOMAC Western Ontario and McMaster Osteoarthritis Index, SF-36 Short-Form 36 Health Survey, Pain-NRS Numeric Pain Rating Scale

ISSN: 1471-2474