Table 6.

Correlations among Patient-Reported Outcomes Measurement Information System-29+2 (version 2.1) preference-based score scales on the 3-month 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		−0.31	−0.38	−0.33	−0.51	−0.55	−0.25	0.32	0.12
PIter	−0.73		0.40	0.71	0.62	0.65	0.22	−0.69	0.43j
PIten	−0.58	0.73		0.34	0.33	0.47	0.20	−0.23	0.16j
FAT	−0.46	0.52	0.39		0.65	0.75	0.16	−0.71	0.33j
DEP	−0.33	0.40	0.33	0.61		0.82	0.26	−0.68	0.27j
ANX	−0.34	0.43	0.35	0.62	0.81		0.26	−0.71	0.15j
SLPD	−0.31	0.37	0.32	0.58	0.50	0.49		−0.26	−0.18
SOC	0.64	−0.66	−0.51	−0.69	−0.61	−0.64	−0.53		−0.17j
CF	0.29	−0.33	−0.30	−0.42	−0.46	−0.49	−0.38	0.49

^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.