Table 3.

Correlations among Patient-Reported Outcomes Measurement Information System-29+2 (version 2.1) preference–based score scales on the baseline survey (did not endorse is below and endorsed fake health condition is above the diagonal).

	PFa	PIterb	PItenc	FATd	DEPe	ANXf	SLPDg	SOCh	CFi
PF		−0.12	−0.14	−0.20	−0.21	−0.26	−0.11	0.15	−0.01
PIter	−0.72		0.26	0.73	0.60	0.56	0.01	−0.78	0.64j
PIten	−0.59	0.72		0.32	0.29	0.29	0.01	−0.27	0.22j
FAT	−0.47	0.54	0.48		0.72	0.66	0.06	−0.70	0.50j
DEP	−0.43	0.50	0.45	0.71		0.77	0.09	−0.68	0.40j
ANX	−0.43	0.51	0.46	0.70	0.82		0.05	−0.64	0.39j
SLPD	−0.30	0.37	0.37	0.61	0.53	0.52		−0.03	−0.17
SOC	0.64	−0.72	−0.56	−0.68	−0.66	−0.66	−0.49		−0.54j
CF	0.33	−0.31	−0.29	−0.30	−0.37	−0.37	−0.31	0.39

^aPF: physical function.

^bPIter: pain interference.

^cPIten: pain intensity.

^dFAT: fatigue.

^eDEP: depression.

^fANX: anxiety.

^gSLPD: sleep disturbance.

^hSOC: ability to participate in social roles and activities.

ⁱCF: cognitive function.

^jCorrelation is in the “wrong” direction.