Table 5 Inter-rater reliability presented as percentage of agreement (PA) and Cohen´s kappa between the gold standard and SFR-classification
From: Reliability of thoracolumbar burst fracture classification in the Swedish Fracture Register
AO classification | PA | Kappa (ASD) |
|---|---|---|
Fracture level | 96% | 0.96 (0.01) |
Type A (SFR classification) | 87% | - |
Type B | 69% | 0.16 (0.04) |
Type B without subtypes | 75% | 0.34 (0.06) |
AOSpine classification (SFR-modification) | 45% | 0.17 (0.03) |
AOSpine classification (SFR-modification) without B-subtypes | 53% | 0.31 (0.05) |