Table 1.

Performance of Sledai-2K to detect a clinically meaningful change in PGA, using cut-offs of decrease and increase (for a clinical improvement and worsening, respectively) in SLEDAI-2K ≥1 and ≥4 points

	Δ SLEDAI-2K≥1				Δ SLEDAI-2K≥4

	Sens.	Spec.	PPV	NPV	Sens.	Spec.	PPV	NPV

Improvement PGA≥0.3	0.7	0.571	0.397	0.825	0.288	0.929	0.622	0.763
Worsening PGA≥0.3	0.725	0.903	0.627	0.936	0.353	0.996	0.947	0.873

Sens: Sensitivity; Spec: Specificity; PPV: Positive predictive value; NPV: Non predictive value.