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Table 3 Weighted kappa values and 95% confidence intervals for both MRI readers, and inter- and intra-observer agreement in all patients with LPD, in patients with a first LPD, and in patients with a recurrent LPD

From: How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?

 

Weighted kappa scores†

 

All patients

First LPD

Recurrent LPD

Reader 1 vs. Reader 2

0.75 (0.68-0.83)

0.82 (0.74-0.91)

0.67 (0.55-0.80)

AC* vs. reader 1

0.73 (0.65-0.80)

0.83 (0.75-0.91)

0.61 (0.48-0.74)

AC* vs. reader 2

0.70 (0.62-0.78)

0.79 (0.70-0.88)

0.60 (0.47-0.73)

  1. † < 0.20 = poor, 0.21-0.40 = fair, 0.41-60 = moderate, 0.61-0.80 = good, 0.81-1.0 = very good
  2. * AC = arthroscopic findings
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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