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Table 1 Strength of agreement according to Kappa values

From: Inter- and intraobserver agreement of three classification systems for lateral clavicle fractures – reliability comparison between two specialist groups

Kappa valueStrength of agreement
0.00 to 0.20Slight
0.21 to 0.40Fair
0.61 to 0.80Substantial
0.81 to 1.00Almost perfect
  1. Interpretation of the strength of agreement with the calculated kappa values according to the criteria for assessing the extent of agreement of Landis and Koch