Skip to main content

Table 4 Diagnostic efficacy of various indicators for the diagnosis of RA and its disease activity

From: Association among B lymphocyte subset and rheumatoid arthritis in a Chinese population

Indicator

AUC

95%CI

Optimal threshold

Sensitivity(%)

Specificity(%)

Youden index

RA vs. control

 Plamablast/CD19 + B, %

0.831

0.748–0.915

1.08

91.4

67.5

0.589

Active RA vs. inactive RA

 Plamablast/CD19 + B, %

0.607

0.479–0.734

2.57

26.8

100.0

0.268

 Anti-CCP, U/mL

0.728

0.621–0.835

21.66

51.8

96.0

0.478

 Combination

0.760

0.658–0.862

Plasmablast > 1.51%

64.3

92.0

0.563

   

Anti-CCP > 25.88 U/mL