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Table 2 Diagnostic performance of urinary ALCAM and conventional biomarkers in discriminating proliferative LN from membranous LN

From: Urinary activated leukocyte cell adhesion molecule as a novel biomarker of lupus nephritis histology

 

Cutoff

AUC

95% CI

SEN (%)

SPE (%)

PPV (%)

NPV (%)

ALCAM (ng/mg)

> 12

0.81

0.70–0.92

78.4

81.0

93.5

51.5

dsDNA (IU/mL)

> 16.5

0.58

0.42–0.75

74.5

50.0

79.5

42.9

C3 (g/L)

< 0.73

0.77

0.65–0.89

75.0

73.7

91.5

43.8

C4 (g/L)

< 0.16

0.58

0.43–0.72

79.7

36.8

82.1

33.3

24 h UP (g/24 h)

> 2.8

0.59

0.45–0.73

59.7

61.9

84.3

31.0

  1. AUC area under the curve, CI confidence interval, SEN sensitivity, SPE specificity, PPV positive predictive value, NPV negative predictive value, 24-h UP 24-h urine protein