Table 5.

Predictive value of the Back-substitution and Validation cohort test.

	Back-Substitution Test			Validation Cohort Test
	DKD	NDKD	Total	DKD	NDKD	Total
Diagnosed as DKD	300	45	345	44	9	53
Diagnosed as NDKD	32	92	124	10	33	43
Total	332	137	469	54	42	96
Sensitivity		90.4%			81.5%
Specificity		67.2%			78.6%
Positive predictive value		87.0%			83.0%
Negative predictive value		74.2%			76.7%
Total consistency		83.6%			80.2%

DKD, diabetic kidney disease; NDKD, non-diabetic kidney disease.