Table 2.

Performance of APS Classification Criteria.

Classification Criteria	Sensitivity (95% CI), %	Specificity (95% CI), %	Positive Predictive Value (95% CI), %	Negative Predictive Value (95% CI), %	Accuracy (95% CI)
2023 ACR/EULAR APS Criteria†	75.7 (66.6–83)	98.8 (93.3–99.8)	98.7 (93.2–99.8)	76.2 (67.2–83.3)	85.9 (80.1–90.2)
Revised Sapporo APS Criteria†	90.3 (83–96.6)	91.4 (83.2–95.7)	93 (86.2–96.6)	88.1 (79.4–93.4)	90.8 (85.7–94.1)
2023 ACR/EULAR APS Criteria⁑	77 (67.8–84.2)	97.6 (91.7–99.3)	97.5 (69.3–84.9)	78.1(69.3–84.9)	86.4 (80.7–90.6)

APS; antiphospholipid syndrome, CI; confidence interval.

^†Considering clinical evaluation by rheumatologist as the gold standard for the diagnosis of APS.

^⁑Considering the Revised Sapporo APS Criteria as the gold standard for the diagnosis of APS.