From: Towards standardized measurement of adverse events in spine surgery: conceptual model and pilot evaluation
O-A1
O-JN2
O-SN3
A-JN4
A-SN5
JN-SN6
Mean7
Etiology, kappa
0.33
0.43
0.45
0.28
0.36
Preventability, weighted kappa
0.60
0.56
0.24
0.49
0.44
JCAHO Severity, weighted kappa
0.25
0.57
0.34
0.26
0.21
0.31