Table 5.

Agreement between models by Kappa statistic in detecting GFR < 45 and < 60 ml/min/1.73 m²

		Steroid free		Steroid maintenance		Steroid free				Steroid maintenance
		GFR < 60	GFR < 45	GFR < 60	GFR < 45	GFR < 60		GFR < 45		GFR < 60		GFR < 45
Estimation method						SN	SP	SN	SP	SN	SP	SN	SP
eGFRCG	Baseline	0.30 (0.11, 0.49)	0.43 (0.22, 0.63)	0.45 (0.11, 0.78)	0.35 (−0.02, 0.73)	78	51	50	90	86	58	44	88
	1 year	0.44 (0.25, 0.64)	0.23 (−0.01, 0.48)	NS	NS	75	69	43	81	NS	NS	NS	NS
eGFRMC	Baseline	0.24 (0.09, 0.39)	0.42 (0.21, 0.62)	0.38 (0.21, 0.62)	0.43 (0.07, 0.79)	45	84	38	96	71	67	44	94
	1 year	0.45 (0.27, 0.62)	0.35 (0.09, 0.60)	NS	NS	60	87	43	89	NS	NS	NS	NS
eGFRMDRD	Baseline	0.34 (0.17, 0.50)	0.49 (0.30, 0.70)	0.22 (−0.16, 0.59)	0.40 (0.06, 0.73)	59	78	46	96	71	50	33	100
	1 year	0.55 (0.37, 0.73)	0.38 (0.13, 0.63)	NS	NS	77	78	50	87	NS	NS	NS	NS
eGFRCKD-EPI	Baseline	0.22 (0.07, 0.37)	0.44 (0.23, 0.64)	0.31 (−0.03, 0.67)	0.40 (0.06, 0.73)	45	81	38	98	57	75	33	100
	1 year	0.44 (0.26, 0.63)	0.43 (0.17, 0.68)	NS	NS	62	84	43	93	NS	NS	NS	NS

SN, sensitivity, SP, specificity. Both sensitivity and specificity are displayed as percentages. NS, not studied as the number of recipients in this category (i.e., 16) is too small.