Scale agreement, ceiling and floor effects, construct validity, and relative efficiency of the PROPr and EQ-5D-3L in low back pain patients

Table 2 Correlation matrix of domains and HSU scores expressed in Pearson’s correlation coefficients r

	EQ-5D-3L	Mobility	Self-Care	Usual Activities	Pain/Discomfort	Anxiety/Depression
PROPr	0.66^***	-0.58^***	-0.46^***	− 0.62^***	-0.52^***	− 0.44^***
Physical Function	0.68^***	-0.66^***	-0.56^***	− 0.59^***	-0.47^***	− 0.28^***
Ability to Participate	0.56^***	-0.53^***	-0.45^***	− 0.63^***	-0.40^***	− 0.31^***
Pain Interference	− 0.64^***	0.51^***	0.44^***	0.57^***	0.56^***	0.34^***
Depression	− 0.42^***	0.28^***	0.30^***	0.32^***	0.34^***	0.58^***
Sleep Disturbance	− 0.22^***	− 0.10	− 0.01	0.20^**	0.25^***	0.33^***
Fatigue	− 0.35^***	0.25^***	0.23^***	0.36^***	0.34^***	0.46^***
Cognition¹	0.51^***	-0.34^***	-0.30^***	− 0.44^***	-0.41^***	− 0.59^***

ISSN: 1477-7525