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Table 5 Diagnostic efficiencies of combined biomarkers of LNA

From: Diagnostic performance of serum cystatin C and complement component 1q in lupus nephritis

Items

AUC (95%CI)

Z/Pa

Se (%)

Sp (%)

YI

Z/Pb

C1q + eGFRCreat

0.756 (0.725~0.785)

13.926/0.000

51.2

92.2

0.434

12.196/0.000

C1q + Creat

0.765 (0.735~0.794)

4.587/0.000

57.5

88.9

0.464

11.864/0.000

C1q + Urea

0.805 (0.776~0.831)

18.108/0.000

62.0

89.9

0.519

10.627/0.000

C1q + CysC

0.933 (0.914~0.949)

46.787/0.000

82.9

92.6

0.755

6.172/0.000

C1q + Urea + eGFRCreat

0.813 (0.785~0.839)

8.969/0.000

70.7

81.7

0.524

10.309/0.000

C1q + Urea + CysC

0.934 (0.915~0.950)

46.787/0.000

82.9

92.6

0.755

6.182/0.000

Urea + CysC + eGFRCreat

0.959 (0.943~0.971)

67.443/0.000

87.7

93.2

0.809

4.178/0.000

C1q + CysC + eGFRCreat

0.969 (0.955~0.980)

79.306/0.000

92.8

90.7

0.836

3.802/0.001

Urea + CysC + eGFRCreat + Creat

0.964 (0.949~0.976)

73.979/0.000

90.4

91.8

0.822

3.053/0.002

C1q + Urea + CysC + eGFRCreat

0.969 (0.955~0.980)

79.306/0.000

92.8

90.7

0.836

3.897/0.001

C1q + CysC + eGFRCreat + Creat

0.974 (0.961~0.984)

88.822/0.000

91.0

95.0

0.860

1.016/0.310

C1q + Urea + CysC + eGFRCreat + Creat

0.975 (0.962~0.984)

88.976/0.000

92.5

94.4

0.869

―

  1. Receiver operating characteristic (ROC) curve was applied to identify the diagnostic efficiencies of combined multiple indicators
  2. Z was the statistics of DeLong non-parametric test to evaluate the statistical difference between the two AUCs
  3. Creat creatinine, Urea urea, C1q complement component 1q, CysC cystatin C
  4. aZ and P values were the AUC-based statistics of each item
  5. bZ and P values were the AUC-based statistics of each item in comparison with the joint utilization of C1q, Urea, CysC, eGFRCreat, and Creat