Skip to main content

Advertisement

Table 3 Intra-rater reliability estimates

From: Degenerative findings on MRI of the cervical spine: an inter- and intra-rater reliability study

MRI finding n Reader pair Observed agreement (%) Agreement by chance (%) Kappa (95% CI)
Kyphosisa 50 A1A2 96.0 59.6 0.90 (0.85; 0.96)
Disc heightb 200 A1A2 84.0 51.5 0.67 (0.57; 0.77)
Disc contourb 174 A1A2 88.5 43.9 0.80 (0.71; 0.87)
Spinal canal stenosisb 50 A1A2 94.0 76.6 0.73 (0.51; 0.90)
Vertebral endplate signal change Too low prevalences (i.e. ≤ 10%)
Uncovertebral osteoarthritisc 281 A1A2 90.4 67.0 0.71 (0.61; 0.81)
Zygapophyseal osteoarthritisc 240 A1A2 90.8 68.8 0.71 (0.59; 0.82)
Neural foraminal stenosisc 287 A1A2 90.6 62.6 0.75 (0.66; 0.84)
  1. an refers to the number of MRIs assessed
  2. bn refers to the number of disc levels assessed
  3. cn refers to the number of anatomical sites assessed (by pooling right and left hand side)