A validation study of the 4-variable and 8-variable kidney failure risk equation in transplant recipients in the United Kingdom

Table 2 Summary of discrimination statistics for the 4- and 8-variable KFREs

	Number in group	Graft failure, n (%)	4-variable KFRE AUC (95% CI)	8-variable KFRE AUC (95% CI)
All patients	415	16 (4)	0.743 (0.610–0.876)	0.751 (0.629–0.872)
Patients with eGFR < 45 ml/min/1.73m²	128	9 (7)	0.817 (0.646–0.988)	0.785 (0.558–0.982)
Deceased donor recipient	318	10 (3)	0.685 (0.503–0.868)	0.707 (0.544–0.870)
Living donor recipient	97	6 (6)	0.846 (0.683–1.000)	0.841 (0.684–0.997)
Deceased donor recipient eGFR < 45 ml/min/1.73m²	104	5 (5)	0.846 (0.663–1.000)	0.800 (0.558–1.000)
Living donor recipient eGFR < 45 ml/min/1.73m²	24	4 (17)	0.787 (0.471–1.000)	0.762 (0.453–1.000)

Abbreviations eGFR (estimated glomerular filtration rate), AUC (area under receiver operator characteristic curve), CI (confidence interval)

ISSN: 1471-2369