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Table 5 Inter-observer agreement regarding distal radial fractures comparing the three raters at the two classification seminars. As presented in Fig. 1, the AO/OTA group includes the 23A2 subgroups

From: Validity of classification of distal radial fractures in the Swedish fracture register

  Inter-observer agreement
Rater 1 vs Rater 2 Rater 1 vs Rater 3 Rater 2 vs Rater 3
Seminar 1
Kappa
(95% CI)
Seminar 2
Kappa
(95% CI)
Seminar 1
Kappa
(95% CI)
Seminar 2
Kappa
(95% CI)
Seminar 1
Kappa
(95% CI)
Seminar 2
Kappa
(95% CI)
AO/OTA group, including A2 subgroup
(4–5 signs)
0.34
(0.24–0.44)
0.48
(0.38–0.58)
0.22
(0.14–0.31)
0.29
(0.20–0.37)
0.28
(0.20–0.37)
0.35
(0.26–0.44)
AO/OTA type
(3 signs)
0.48
(0.36–0.60)
0.76
(0.66–0.87)
0.51
(0.39–0.63)
0.69
(0.58–0.80)
0.62
(0.51–0.73)
0.71
(0.61–0.82)