Table 4.

Kappa results of renal damage risk

Category	Kappa	Concordance Index (95.0%)
Low risk	0.8375	0.7308	0.9442
Moderate risk	0.2920	0.0906	0.4930
High risk	0.7077	0.5780	0.8373
Very high risk	0.5234	0.0462	0.9984
Global Kappa	0.7119	0.5928	0.8308