Table 5.

The performance of the different criteria in patients in sustained remission

	Non-progressors*
	Percentage in sustained remission	Percentage not in sustained remission	Sensitivity	Specificity	PPV	NPV	p Value	Likelihood ratio (95% CI)
DAS28 Cr	62	45	0.19	0.90	0.62	0.55	0.015	1.82 (1.11 to 2.97)
DAS28-3 Cr	63	45	0.16	0.91	0.63	0.53	0.022	1.77 (1.04 to 3.02)
Boolean Cr	62	47	0.05	0.98	0.69	0.53	0.11	2.47 (0.77 to 7.91)
Boolean-3 Cr	55	47	0.12	0.91	0.55	0.53	0.32	1.33 (0.75 to 2.38)
SDAI Cr	74	47	0.08	0.97	0.74	0.53	0.025	2.96 (1.09 to 8.05)
SDAI-4 Cr	60	47	0.11	0.93	0.60	0.53	0.14	1.62 (0.8 to 3.09)

Sensitivity, specificity, PPV (positive predictive value), NPV (negative predictive value) and positive likelihood ratios, all with absence of radiographic progression from baseline to 8 years as outcome.

*Non-progressors—patients without radiographic progression from baseline to 8 years.

DAS28, disease activity score calculated on 28 joints; SDAI Cr, Simplified Disease Activity Index less than 3.3 remission criterion.