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Table 6 Intraobserver agreement for each of the three raters, comparing their classification at the two seminars

From: Femoral fracture classification in the Swedish Fracture Register – a validity study

  Intraobserver agreement
  Rater 1   Rater 2 Rater 3
  PA Kappa (95% CI) PA Kappa 95% CI PA Kappa 95% CI
AO/OTA group (4 signs) 83% 0.81 (0.73–0.88) 81% 0.79 (0.72–0.87) 82% 0.8 (0.72–0.88)
AO/OTA type (3 signs) 95% 0.93 (0.88–0.98) 93% 0.91 (0.86–0.97) 93% 0.91 (0.86–0.97)
  1. PA percentage of agreement, GS gold standard