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 5 Construct and known-groups validity of international hip outcome tool (12 items) - Greek version (n = 124)

Construct validity
		Factor-1		Factor-2		iHOT12-Gr-total^a
		Spearman’s correlation coefficient
Lower Extremity Functional Scale – Greek version		0.798		0.618		0.793
Modified Harris hip score – Greek version		0.738		0.589		0.725
30s chair-to-stand test		0.264		0.131		0.248
Timed Up and Go test		−0.390		− 0.211		− 0.373
9stairs-Ascent/Descent test		− 0.388		− 0.220		− 0.383
Known-groups validity
Functional status^b	N	Factor-1	p-value	Factor-2	p-value	iHOT12-Gr-total^a	p-value
Poor functionality < 53	94	31.86 ± 17.85^c	< 0.001	22.84 ± 29.45^c	< 0.001	29.60 ± 18.83^c	< 0.001
Good functionality > 53	30	70.46 ± 17.05^c		48.67 ± 36.22^c		65.01 ± 17.95^c

^aThe international Hip Outcome Tool (12 items) – Greek version
^bAs external criterion for examined the ability of iHOT12-Gr to distinguish subgroups of patients formed on the basis of their functional status, the cut-off point (53 points) of the Lower Extremity Functional Scale – Greek version was used. The independent samples t-test was used for the statistical analysis
^cThe values are expressed as Mean ± Standard deviation (SD)