Spot urine protein/creatinine ratio as a reliable estimate of 24-hour proteinuria in patients with immunoglobulin A nephropathy, but not membranous nephropathy

Table 2 Correlation between spot urinary protein creatinine ratio and 24-h proteinuria

	All cases N = 161	IgAN N = 84	MCD N = 53	MGN-NS N = 24
Pearson’s correlation coefficient (r)	0.734	0.827	0.628	0.092
P values	<0.001	<0.001	0.001	0.670
Intraclass correlation coefficient (ICC)	0.730	0.806	0.420	0.080
(95% confidential interval)	(0.649–0.795)	(0.713–0.871)	(0.174–0.617)	(- 0.306–0.454)
P values	<0.001	<0.001	0.001	0.346

IgAN denotes immunoglobulin A nephropathy, MCD minimal change disease, MGN-NS Membranous glomerulonephritis with nephrotic syndrome

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