Table 2.

The 11 items tested but not included. SRM (standardized response mean) and mean relevance are given for each question.

	Items not included	Mean Relevance	SRM	KOOS Item nr
	Pain
P2	Pain twisting/pivoting on loaded leg?	2.5	1.0	P2
P10	Sharp twinges in your hip?	2.3	1.6	*
	Other Symptoms
S1	Do you have swelling in your hip?	0.4	0.5	S1
S3	Does your hip catch or hang up when moving?	0.8	0.7	S3
S4	Can you straighten your hip fully?	2.3	0.8	S4
S5	Can you bend your hip fully?	2.4	0.9	S5
S8	Have you experienced weakness in your leg?	2.6	0.9
	ADL
A19	Cutting toenails?	2.3	0.8	*
	Sport/Recreation
SP3	Difficulty jumping?	2.3	0.7	SP3
SP5	Difficulty kneeling?	2.3	1.1	SP5
	Hip related QOL
Q5	Can you cope with your hip problems?	2.3	1.6	*

* these items were constructed by one of the authors (MK)