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Table 1 Kappa coefficients for the inter-observer reliability of the Schatzker, AO/OTA and three-column classification

From: Inter-observer reliability assessment of the Schatzker, AO/OTA and three-column classification of tibial plateau fractures

  Schatzker AO/OTA Three-column
Observer 1/2 0.576 0.710 0.731
Observer 1/3 0.582 0.635 0.706
Observer 1/4 0.570 0.603 0.890
Observer 2/3 0.513 0.586 0.721
Observer 2/4 0.589 0.510 0.730
Observer 3/4 0.572 0.692 0.818
Mean 0.567 0.623 0.766