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Table 2 Interobserver agreement between three senior orthopedic surgeons for GT fracture classification and detection of surgical neck fracture

From: The incidence of occult and missed surgical neck fractures in patients with isolated greater tuberosity fracture of the proximal humerus

Intra-class correlation coefficient (ICC) GT fracture classification Detection of surgical neck fracture  
Inter-rater ICC 0.8 0.58 ~  0.77  
Intra-rater ICC   0.65 ~  0.68  
  1. ICC rating: Excellent-Between 0.75 and 1.00, Good-Between 0.60 and 0.74, Fair-Between 0.40 and 0.59, Poor-Less than 0.40