Table 5.

Area under the ROC curve.

	Area	Standard error	Asymptotic SIG.	Asymptotic 5% CI
				Lower bound	Upper bound
				Serum creatinine	0.885	0.048	0.000**	0.790	0.980
Salivary creatinine	0.805	0.075	0.001**	0.659	0.952

CI: confidence interval.

^**Statistical significance (p < .05).