Table 1.

The comparison of clinical characteristics between the two groups.

Index	Guangzhou Group (n = 193)	Xi’an Group (n = 199)	p value
Serum uric acid (μmol/L)	383.26 ± 52.98	323.61 ± 59.69*	<.001
Triglyceride (mmol/L)	1.598 ± 1.19	1.80 ± 1.20*	.020
Serum alexin C3 (g/L)	1.02 ± 0.20	0.98 ± 0.19*	.008
Serum creatinine (μmmol/L)	103.95 ± 22.85	93.98 ± 16.03*	.003
Glomerular filtration rate (ml/min)	81.98 ± 12.43	102.96 ± 22.94*	<.001
Serum cholesterol (mmol/L)	5.37 ± 1.94	5.00 ± 1.80*	.008
Urine erythrocyte (n/μl)	73.17 ± 13.77	258.56 ± 54.94*	.002
Serum IgA level (g/L)	3.09 ± 0.98	2.89 ± 0.68	.107
Blood urea nitrogen (mmol/L)	5.95 ± 1.69	6.16 ± 1.88	.566
24-hour urinary protein quantity (g/24h)	1.73 ± 0.59	1.64 ± 0.53	.746

^*p < .05, compared with Guangzhou group.