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Table 2 Intraclass Correlation Coefficient (ICC) for the Intra-observer and Inter-Observer Reliability

From: Accuracy on the preoperative assessment of patients with adolescent idiopathic scoliosis using biplanar low-dose stereoradiography: a comparison with computed tomography

  Intra-observer reliability Inter-observer reliability
Parameters Prone CT Upright EOS Prone CT Upright EOS
Slenderness 0.998 (0.308–1.000) 0.998 (0.105–1.000) 0.972 (0.806–1.000) 0.959 (0.862–1.000)
Cobb angle 0.996 (0.963–1.000) 0.993 (0.933–0.999) 0.979 (0.817–0.998) 0.985 (0.865–0.998)
Spinal deformity 1.000 (0.849–1.000) 0.986 (0.639–1.000) 0.973 (0.799–1.000) 0.871 (0.956–1.000)
Vertebral and intervertebral wedging 0.999 (0.993–1.000) 0.999 (0.994–1.000) 0.968 (0.850–0.994) 0.982 (0.912–0.996)
Kyphosis 0.913 (0.176–0.994) 0.878 (0.700–0.992) 0.930 (0.284–0.995) 0.706 (0.453–0.978)
Lordosis 0.991 (0.871–0.999) 0.911 (0.163–0.994) 0.981 (0.748–0.999) 0.888 (0.043–0.992)
Intervertebral axial rotation 0.996 (0.979–0.999) 0.959 (0.810–0.992) 0.978 (0.897–0.996) 0.933 (0.703–0.986)
  1. ICC (95% Confidence interval)