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Table 2 Inter-observer agreement subdivided by fracture type

From: Classification and treatment of proximal humerus fractures: inter-observer reliability and agreement across imaging modalities and experience

2 Part Neer Fractures       
  Classification   Treatment    
Modality Kappa Score 95% Confidence Interval Strength of Agreement Kappa Score 95% Confidence Interval Strength of Agreement
Plain film X-ray 0.0358 (0.0000-0.0907) slight 0.1494 (0.0959-0.2030) slight
2D CT scan 0.0448 (0.0000-0.0977) slight 0.2446 (0.1912-0.2980) fair
3D reconstruction 0.0770 (0.0251-0.1290) slight 0.1793 (0.1241-0.2344) slight
3 Part Neer Fractures       
  Classification   Treatment    
Modality Kappa Score 95% Confidence Interval Strength of Agreement Kappa Score 95% Confidence Interval Strength of Agreement
Plain film X-ray 0.0877 (0.0556-0.1198) slight 0.3430 (0.3057-0.3802) fair
2D CT scan 0.0524 (0.0000-0.0850) slight 0.2860 (0.2492-0.3229) fair
3D reconstruction 0.0960 (0.0640-0.1284) slight 0.3579 (0.3222-0.3935) fair
4 Part Neer Fractures       
  Classification   Treatment    
Modality Kappa Score 95% Confidence Interval Strength of Agreement Kappa Score 95% Confidence Interval Strength of Agreement
Plain film X-ray 0.2600 (0.2105-0.3090) fair 0.1697 (0.1481-0.2454) slight
2D CT scan 0.4467 (0.3989-0.4946) moderate 0.3368 (0.2857-0.3880) fair
3D reconstruction 0.5743 (0.5225-0.6260) moderate 0.0893 (0.0344-0.1441) slight