Table 2.

Uni- and multivariable logistic analyses with fulfillment of the 2010 RA criteria as the outcome.

	Univariable Analyses			Multivariable Model 1^*			Multivariable Model 2^†
	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p
Age per 10 yrs	1.24	1.00–1.53	0.04	1.25	1.00–1.58	0.06	1.34	1.05–1.70	0.02
Sex (ref. male)	2.07	1.08–3.98	0.03	2.82	1.23–6.10	0.01	2.37	1.12–5.00	0.02
Small joint involvement	3.18	1.66–6.12	0.001	4.95	2.23–11.0	< 0.001
RF/ACPA status (ref. double negative)	12.1	5.50–26.7	< 0.001	17.5	7.00–44.0	< 0.001	25.9	9.97–67.3	< 0.001
Swollen shoulder joint	10.3	3.19–33.5	< 0.001	13.1	3.14–54.2	< 0.001
Joint involvement			< 0.001						< 0.001
Oligo- vs monoarticular	3.18	1.46–6.93	0.26				3.56	1.46–8.68	0.005
Poly- vs monoarticular	9.94	4.20–23.5	< 0.001				19.1	7.05–51.7	< 0.001

↵* AUC (95% CI) = 0.83 (0.77–0.89), Hosmer-Lemeshow test, p = 0.64.
↵† AUC (95% CI) = 0.85 (0.80–0.91) Hosmer-Lemeshow test, p = 0.96. RA: rheumatoid arthritis; RF: rheumatoid factor; ACPA: anticitrullinated protein antibodies.