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) |