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Egyptian Journal of Radiology and Nuclear Medicine

Table 5 Showing diffusion (C) cut off, sensitivity, specificity, AUC, and p value between each grade

From: Advanced trends in magnetic resonance imaging in assessment of lumbar intervertebral degenerative disk disease

Diffusion (Central)

AUC

P

95% C.I

Cut off

Sensitivity

Specificity

PPV

NPV

I:II

0.502

0.568

0.270–0.632

> 1.97

27.78

88.24

83.3

36.6

II:III

0.549

0.457

0.417–0.681

≤ 2.01

97.67

27.78

56.8

80.0

III:IV

0.730

< 0.001*

0.618–0.841

≤ 1.55

65.12

79.07

75.7

69.4

IV:V

0.560

0.540

0.335–0.785

≤ 1.33

45.45

83.72

41.7

85.7

  1. AUC area under a curve, p value probability value, CI confidence interval, NPV negative predictive value, PPV positive predictive value
  2. *Statistically significant at p ≤ 0.05
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