Retrospective Study
Copyright ©The Author(s) 2021.
World J Orthop. May 18, 2021; 12(5): 301-309
Published online May 18, 2021. doi: 10.5312/wjo.v12.i5.301
Table 1 Comparison of critical shoulder angle measurements between methods and observers

Observer 1 (Smith GCS)
Observer 2 (Mah D)
Combined
Means (SD)
Radiographs32.42° (4.58°)32.88° (3.96°)32.55° (4.26°)
CT-based method29.86° (3.61°)29.79° (3.41°)29.82° (3.49°)
Inter-method
Difference (LOA)12.46° (-3.05° to +7.24°)12.99° (-3.15° to +7.97°)12.73° (-2.17° to +7.63°)
Pearson’s r10.76910.72510.748