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. 2010 Jun 8;468(9):2485–2494. doi: 10.1007/s11999-010-1400-y

Table 2.

Intraobserver reliability for the original and simplified K&M classifications

Observer Original K&M classification Simplified K&M classification
Observed proportion of agreement Weighted kappa Observed proportion of agreement Weighted kappa
GBF 84% 0.59 90% 0.66
AJFR 84% 0.54 87% 0.52
AS 89% 0.64 91% 0.59