Table 1.

Baseline characteristics of the study population characteristic

	IgAN	Control		P-value
	(n = 50)	(Serum: n = 22)	(Tissue: n = 5)	(Serum/tissue)
Age (years)	32.90 ± 1.36	34.04 ± 1.98	41.40 ± 4.64	0.6353/0.0591
Female (%)	38 (64)	12 (54.5)	3 (60)	0.3953/0.1774
Creatinine (µmol/l)	79.91 ± 2.39	73.65 ± 3.39	85.33 ± 6.65	0.1397/0.4558
Urea (mmol/l)	4.54 ± 0.19	4.01 ± 0.27	4.57 ± 0.40	0.1219/0.9590
Proteinuria (g/day)	0.85 ± 0.14	0.10 ± 0.01	0.21 ± 0.01	0.0005*/0.0046*
Haematuria (/ml)	203.30 ± 54.29	0.61 ± 0.21	287 ± 0.21	0.013*/0.32
Albumin (g/l)	38.45 ± 0.69	38.07 ± 0.96	36.17 ± 0.55	0.7495/0.5326
IgA (mg/l)	2910 ± 159.92	2924 ± 219.61	3224 ± 168.93	0.9595/0.6427
Uric acid (mmol/l)	352.71 ± 13.34	350.12 ± 15.87	376.1 1 ± 10.54	0.9089/0.7842

Continuous variables were expressed as M ± SD. Categorical values were presented as frequencies (percentages). By Unpaired t test. *P < 0.05