Table 4.

Multivariable analysis of predictive factors for disability

PROMIS Physical Function	Coefficient	Partial R2	SE	p value	Adjusted R2	95% CI
PROMIS Pain Interference	−0.57	0.25	0.11	< 0.001	0.49	−0.7	−0.36
Sex	3.2	0.054	1.5	0.030		0.31	6.1
Other pain conditions	−3.8	0.059	1.6	0.023		−7.0	−0.53
Prior surgery	−4.3	0.039	2.3	0.066		−8.9	0.29
Work status retired	−4.7	0.080	1.7	0.0080		−8.2	−1.3
Work status unemployed, unable to work	−6.5	0.076	2.4	0.010		−11	−1.6
Work status on workers compensation	−19	0.083	6.9	0.0070		−33	−5.5

QuickDASH	Coefficient	Partial R2	SE	p value	Adjusted R2	95% CI
PROMIS Pain Interference	1.9	0.48	0.22	< 0.001	0.61	1.5	2.4
Age	0.24	0.081	0.086	0.0070		0.065	0.41
Work status homemaker	43	0.094	14	0.0040		14	71
Work status unemployed, able to work	14	0.056	6.0	0.027		1.6	26
Work status unemployed, unable to work	13	0.072	5.0	0.011		3.0	23
Work status on workers compensation	31	0.050	14	0.036		2.0	59

PROMIS = Patient Reported Outcomes Measurement Information System; QuickDASH = Quick Disability of Arm, Shoulder and Hand; SE = standard error.