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Table 3 Between and within observer weighted kappa (Kw) and 95% confidence intervals for footrot and foot integrity scores

From: Evaluating observer agreement of scoring systems for foot integrity and footrot lesions in sheep

  Weighted kappa (95% CI)
  Footrot scores Foot integrity scores
  Pictures Videos Soles Walls
Between Observers
Observer 1–2 0.58 (0.41-0.74) 0.68 (0.52-80) 0.68 (0.58-0.77) 0.58 (0.45-0.71)
Observer 1–3 0.67 (0.49-0.80) 0.65 (0.44-0.78) 0.70 (0.58-0.71) 0.70 (0.58-0.79)
Observer 2–3 0.65 (0.46-0.75) 0.73 (0.61-0.83) 0.67 (0.57-0.77) 0.68 (0.55-0.75)
Within Observer     
Observer 1 0.90 (0.70-0.98) 0.89 (0.80-0.93) 0.90 (0.83-0.95) 0.84 (0.76-0.90)
Observer 2 0.78 (0.67-0.75) 0.77 (0.64-0.86) 0.86 (0.78-0.92) 0.82 (0.72-0.89)
Observer 3 0.91 (0.71-0.97) 0.85 (0.75-0.92) 0.83 (0.74-0.89) 0.73 (0.64-0.83)