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Table 3 Diagnostic Performance Among the Three MRI Measurementsa

From: Increased lateral femoral condyle ratio measured by MRI is associated with higher risk of noncontact anterior cruciate ligament injury

 

Cut-off value

Sensitivity

Specificity

Youden index

AUC

AUC:95%CI

P valueb

P valuec

LFCR

0.61

0.79

0.67

0.47

0.81

0.73-0.88

< 0.01

–

LTH

2.35

0.74

0.57

0.31

0.69

0.60-0.79

< 0.01

0.04

LFCR+LTH

0.46

0.83

0.76

0.59

0.85

0.78-0.92

< 0.01

0.11

  1. aMRI magnetic resonance imaging, LFCR lateral femoral condyle ratio, LTH lateral tibial height, AUC area under the curve
  2. bP value of each AUC tested against 0.5; binomial Z-test
  3. cP value of each AUC tested against the AUC for the LFCR; binomial Z-test
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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