Table 5.

Multivariate Linear Regression Analysis

	PROMIS PF CAT			PROMIS UE CAT			qDASH
Factor	Coefficient	95% C.I.	p-value	Coefficient	95% C.I.	p-value	Coefficient	95% C.I.	p-value
Age	−0.08	−0.12 – −0.04	<0.05	N/A	N/A	N/A	N/A	N/A	N/A
PROMIS Non-Functional Score
Anxiety CAT	−0.19	−0.25 – −0.13	<0.05	−0.17	−0.22 – −0.11	<0.05	0.31	0.18 – 0.43	<0.05
Pain Interference CAT	−0.59	−0.66 – −0.52	<0.05	−0.69	−0.76 – −0.62	<0.05	2.06	1.90 – 2.22	<0.05
Sexa	−0.83	−1.79 – 0.14	0.09	−0.84	−1.77 – 0.08	0.07	2.57	0.46 – 4.67	<0.05
Smoking Statusb
Quit	0.06	−1.53 – 1.64	0.95	−0.36	−1.88 – 1.17	0.64	−2.24	−5.64 – 1.17	0.20
Never	0.12	−1.15 – 1.39	0.85	0.25	−0.99 – 1.49	0.69	−1.96	−4.75 – 0.83	0.17
Working Statusc
Part Time	−1.14	−3.04 – 0.77	0.24	−0.88	−2.73 – 0.97	0.35	−0.17	−4.43 – 4.08	0.94
Retired	−4.78	−6.50 – −3.06	<0.05	−2.55	−3.92 – −1.18	<0.05	4.40	1.20 – 7.61	<0.05
Disabled	−6.24	−8.33 – −4.14	<0.05	−1.17	−3.19 – 0.85	0.26	5.17	0.78 – 9.57	<0.05
Unemployed	−2.42	−3.68 – −1.15	<0.05	−1.56	−2.80 – −0.32	<0.05	3.29	0.52 – 6.06	<0.05
Adjusted R2	0.45			0.46			0.61

Abbreviations: N/A - not applicable given non-significant Pearson correlation coefficient analysis; C.I. - confidence interval

Definition of reference groups:

^aFemale,

^bActive smoker

^cFull time work.