Usefulness of Patients-Reported Outcomes in Rheumatoid Arthritis Focus Group

Table 3

Predictors of DAS28 with PROs variables.

	β *	P
Constant	2.021	<0.001
RAPID4	0.037	0.03
Patient SJC	0.042	<0.001
RADAI	0.073	0.48
Patient TJC	0.009	0.49
Gender	−0.123	0.44
RA duration	0.029	0.83
Education level	0.127	0.35

PROs: patient reported outcomes; β: beta coefficient; P: P value; RAPID: routine assessment of patient index data; SJC: swollen joint count; TJC: tender joint count; RA: rheumatoid arthritis.
*The beta coefficients give a measure of the contribution of each variable to the model. A large value indicates that a unit change in this predictor variable has a large effect on the criterion variable (DAS28).