. Author manuscript; available in PMC: 2014 Jun 1.

Published in final edited form as: Arthritis Rheum. 2013 Jun;65(6):1421–1429. doi: 10.1002/art.37917

Table 4.

Multiple regression model with DAS28 at 2 years as the dependent variable

Dependent variable: DAS28 at 2-years

	b	95% CI	Beta	p
DMARDs: % prescribed dose taken	−0.02	−0.03, −0.001	−0.2	0.03^*
Age	0.02	−0.01, 0.05	0.15	0.13
Female	1.45	0.75, 2.15	0.37	<0.01^*
Disease duration (years)	−0.05	−0.1, −0.006	−0.21	0.03^*
Cumulative dose of prednisone (grams)	0.04	−0.07, 0.15	0.07	0.5
Received biologics agents	0.53	−0.04, 1.09	0.18	0.07
Number of DMARDs used	0.02	−0.32, 0.36	0.01	0.90
Baseline DAS28	0.31	0.14, 0.49	0.33	<0.01^*
Intercept	−0.2			0.87

R²=0.44

CI= Confidence Interval; DMARD = disease-modifying antirheumatic drug; DAS28 = disease activity score 28-joint index

statistically significant.