Table 2.

Univariate logistic regression models to estimate the associations among baseline variables that are potential predictors of remission by the Boolean criteria, DAS28, SDAI, CDAI, RAPID3, and RAPID3-SJ1 at 6 and/or 12 months.

Baseline Variables	Boolean Criteria, n = 165 (24.8%)		SDAI ≤ 3.3, n = 204 (30.8%)		CDAI ≤ 2.8, n = 205 (30.9%)		DAS28 ≤ 2.6, n = 339 (51.4%)					RAPID3 ≤ 3, n = 273 (41.1%)		RAPID3 ≤ 3 + SJ ≤ 1, n = 209 (31.5%)
Baseline Variables	OR (95% CI)	p	OR (95% CI)	p	OR (95% CI)	p	OR (95% CI)				p	OR (95% CI)	p	OR (95% CI)	p
Age, yrs	0.97 (0.96–0.98)	< 0.001	0.97 (0.95–0.98)	< 0.001	0.97 (0.95–0.98)	< 0.001	0.98 (0.97–0.99)				0.02	0.98 (0.97–1.00)	0.011	0.97 (0.96–0.99)	< 0.001
Disease duration, mos	0.99 (0.96–1.01)	0.26	0.99 (0.97–1.01)	0.255	0.99 (0.97–1.01)	0.300	0.99 (0.98–1.01)			0.76		1.00 (0.98–1.02)	0.953	0.99 (0.98–1.01)	0.91
Female	1.05 (0.69–1.59)	0.83	1.05 (0.71–1.56)	0.796	1.02 (0.69–1.51)	0.914	0.59 (0.41–0.85)		0.05			0.83 (0.58–1.19)	0.312	0.94 (0.64–1.38)	0.76
Erosive at baseline, yes = 1	1.01 (0.69–1.48)	0.95	1.07 (0.75–1.52)	0.716	1.01 (0.71–1.44)	0.955	1.16 (0.83–1.61)	0.38				0.91 (0.65–1.27)	0.587	0.85 (0.60–1.21)	0.37
Family history of RA, yes = 1	0.70 (0.42–1.17)	0.17	0.65 (0.40–1.06)	0.082	0.65 (0.40–1.05)	0.076	0.55 (0.36–0.85)	0.006				0.72 (0.47–1.11)	0.135	0.62 (0.38–1.00)	0.05
TJC, 0–28	0.94 (0.91–0.97)	< 0.001	0.92 (0.89–0.95)	< 0.001	0.92 (0.89–0.94)	< 0.001	0.93 (0.91–0.95)	< 0.001				0.97 (0.94–0.99)	0.003	0.95 (0.92–0.97)	< 0.001
SJC, 0–28	0.96 (0.92–0.99)	0.01	0.94 (0.90–0.97)	< 0.001	0.93 (0.90–0.97)	< 0.001	0.98 (0.95–1.01)	0.15				1.00 (0.97–1.03)	0.923	0.96 (0.93–0.99)	0.01
PGA, 0–100	0.98 (0.97–0.99)	< 0.001	0.98 (0.97–0.99)	< 0.001	0.98 (0.97–0.99)	< 0.001	0.98 (0.97–0.99)	< 0.001				0.98 (0.98–0.99)	< 0.001	0.98 (0.97–0.99)	< 0.001
ESR	0.99 (0.99–1.01)	0.83	1.00 (0.99–1.01)	0.893	1.00 (1.00–1.01)	0.615	0.99 (0.98–0.99)	0.03				1.00 (0.99–1.01)	0.809	1.00 (0.99–1.00)	0.50
CRP	0.99 (0.94–1.04)	0.76	0.99 (0.94–1.04)	0.649	1.00 (0.96–1.05)	0.897	1.00 (0.96–1.05)	0.89				1.00 (0.96–1.05)	0.908	1.01 (0.96–1.06)	0.66
ACPA+, yes = 1	0.84 (0.58–1.21)	0.35	0.84 (0.60–1.18)	0.316	0.88 (0.63–1.24)	0.467	0.82 (0.60–1.12)	0.21				0.94 (0.69–1.29)	0.704	0.87 (0.62–1.22)	0.42
RF+, yes = 1	1.07 (0.75–1.53)	0.71	1.16 (0.83–1.62)	0.375	1.14 (0.82–1.60)	0.429	1.35 (0.99–1.84)	0.06				1.09 (0.79–1.48)	0.607	1.13 (0.81–1.57)	0.47
Function, 0–10	0.89 (0.82–0.97)	0.006	0.87 (0.81–0.94)	< 0.001	0.89 (0.82–0.96)	0.002	0.85 (0.80–0.91)	< 0.001				0.82 (0.77–0.89)	< 0.001	0.85 (0.79–0.92)	< 0.001
Pain, 0–100	0.98 (0.97–0.99)	< 0.001	0.98 (0.97–0.98)	< 0.001	0.98 (0.97–0.98)	< 0.001	0.98 (0.97–0.99)	< 0.001				0.97 (0.97–0.98)	< 0.001	0.98 (0.97–0.99)	< 0.001
PtGA, 0–100	0.99 (0.98–0.99)	< 0.001	0.99 (0.98–0.99)	< 0.001	0.99 (0.98–0.99)	< 0.001	0.98 (0.97–0.99)	< 0.001				0.98 (0.98–0.99)	< 0.001	0.99 (0.98–0.99)	< 0.001

DAS28: Disease Activity Score at 28 joints; SDAI: Simplified Disease Activity Index; CDAI: Clinical Disease Activity Index; RAPID3: Routine Assessment of Patient Index Data 3; SJ: swollen joint; RA: rheumatoid arthritis; SJC: swollen joint count; TJC: tender joint count; PGA: physician’s global assessment; ESR: erythrocyte sedimentation rate; CRP: C-reactive protein; ACPA: anticitrullinated protein antibodies; RF: rheumatoid factor; PtGA: patient’s global assessment.