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Table 2 Global interobserver consistency between the two senior radiologists of MRI

From: Assessment of irreducible aspects in developmental hip dysplasia by magnetic resonance imaging

  Doctor 1
Doctor 2 Labrum Ligamentum teres Contracture of the iliopsoas muscle Fibrofatty Joint Effusion
(+) (—) Total (+) (—) Total (+) (—) Total (+) (—) Total (+) (—) Total
(+) 23 0 23 24 0 24 18 0 18 31 0 31 26 0 26
(—) 5 15 20 10 9 19 3 22 25 0 12 12 0 17 17
Total 28 15 43 34 9 43 21 22 43 31 12 43 26 17 43
  1. The interobserver variability was assessed by intra-class correlation coefficient (ICC). Global interobserver consistencies between the two radiologists for labrum, ICC = 0.88, 95% CI (0.777, 0.934); for ligamentum teres, ICC= 0.72, 95% CI (0.490, 0.850); for contracture of the iliopsoas muscle, ICC = 0.93, 95% CI (0.870, 0.962); for fibrofatty pulvinar tissue and joint effusion, ICC = 1.00
  2. The ICC values indicate fairly good consistencies between the two senior radiologists of MRI