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Table 5 Reliability measures for both qualitative & quantitative assessments (inter-rater agreement)

From: MR imaging biomarkers for evaluation of adhesive capsulitis of the shoulder. Additive value of anterior capsule abnormality as a reliable criterion for diagnosis of adhesive capsulitis: a cross sectional analytic study

 

ICC

95% CI

Inter-observer agreement%

K

95% CI

Degree of agreement

Quantitative assessment

 Anterior capsule thickness

0.877

(0.783—0.93)

   

Excellent

 Maximal axillary capsule thickness

0.874

(0.786—0.926)

   

Excellent

 Humeral capsular thickness

0.833

(0.714—0.902)

   

Excellent

 Glenoid capsular thickness

0.866

(0.769—0.922)

   

Excellent

 Coracohumeral ligament thickness

0.953

(0.921—0.973)

   

Excellent

 Degree of external rotation

0.950

(0.915—0.971)

   

Excellent

Qualitative assessment

 Anterior capsular abnormal hyperintensity

  

85.7%

0.705

(0.516—0.894)

Good

 Axillary capsular abnormal hyperintensity

  

87.5%

0.749

(0.576—0.923)

Good

 Humeral capsular abnormal hyperintensity

  

85.7%

0.716

(0.535—0.896)

Good

 Glenoid capsular abnormal hyperintensity

  

91.1%

0.798

(0.63—0.966)

Good

 Abnormal hyperintensity at subcoracoid fat triangle

  

91.1%

0.819

(0.669—0.97)

Excellent

 Obliteration of the subcoracoid fat triangle

  

91.1%

0.727

(0.522—0.932)

Good