Model	Variable (titres)	Chi-Sq (p-value)	ROC AUC
1	CRP	6.4 (p=0.0012)	0.72
2	anti-CCP	7.4 (p=0.0065)	0.74
3	14-3-3η	5.4 (p=0.02)	0.65
4	CRP	11.7 (p=0.003)	0.80
	anti-CCP
5	CRP	15.3 (p=0.002)	0.85
	anti-CCP
	14-3-3η