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Table 4 Positive results for PNC assay, CLIFT, ANA, and combination of PNC and CLIFT

From: The assessment of serum-mediated phagocytosis of necrotic material by polymorphonuclear leukocytes to diagnose and predict the clinical features of systemic lupus erythematosus: an observational longitudinal study

Test result

Area under the curve

95 % confidence interval

Lower bound

Upper bound

PNC+

0.58

0.50

0.66

CLIFT+

0.64

0.56

0.72

ANA+

0.70

0.65

0.76

PNC+CLIFT+

0.57

0.49

0.65

  1. ANA anti-nuclear antibodies, CLIFT Crithidia luciliae immunofluorescence test, PNC phagocytosis of necrotic cell material