International Hip Outcome Tool (12-items) as health-related quality-of-life measure in osteoarthritis: validation of Greek version

Journal of Patient-Reported Outcomes

Table 2 Factor analysis of the international Hip Outcome Tool (12 items) - Greek version questionnaire (n = 124)

Eigenvalues and explained variance				Factor loadings^a
Items	Eigenvalues	% of Variance	Cumulative %	Factor 1	Factor 2
1	*6.166*	51.380	51.380	.452
2	*1.379*	11.492	62.873	.727
3	.896	7.470	70.342	.752
4	.747	6.228	76.570	.547
5	.584	4.866	81.436	.769
6	.573	4.774	86.210	.498
7	.398	3.318	89.528	.608
8	.334	2.785	92.314	.842
9	.260	2.170	94.483	.683
10	.251	2.090	96.574		.940
11	.231	1.929	98.503		.781
12	.180	1.497	100.000		.568

^aExtraction method: maximum likelihood. Rotation: oblique with Kaiser normalization (rotation converged over 7 iterations). Only loadings with values > 0.40 are presented