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Table 1 Sensitivities and specificities of AhFibA and anti-CCP2 assay in the two populations

From: Diagnostic value of anti-human citrullinated fibrinogen ELISA and comparison with four other anti-citrullinated protein assays

 

Cut-off

Population 1

Population 2

  

Specificity

Sensitivity

Sensitivity

AhFibA antibody (OD)

0.027

0.945

0.685

0.800

 

0.11

0.985

0.609

0.711

 

0.12

0.987

0.609

0.700

 

0.19

0.990

0.598

0.678

anti-CCP2 antibody (U/ml)

14.5

0.950

0.728

0.744

 

37

0.985

0.674

0.680

 

42

0.985

0.641

0.650

 

135

0.990

0.565

0.551

RF

160

0.948

0.391

0.556

 

640

0.985

0.163

0.244

 

1280

0.993

0.087

0.122

  1. AhFibA, anti-human fibrinogen (auto)antibodies; CCP, cyclic citrullinated peptide; OD, optical density; RF, rheumatoid factor.
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Arthritis Research & Therapy

ISSN: 1478-6362

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