Table 3.

Comparison of variables between gouty patients with and those without urolithiasis determined by history.

Variables	Patients with Urolithiasis in History, n = 65		Patients without Urolithiasis in History, n = 318		p	p, adjusted for age
Variables	Mean	SD	Mean	SD	p	p, adjusted for age
Age, yrs	53.77	11.76	46.20	12.09	< 0.001	–
Body mass index	25.78	3.18	24.84	3.39	0.040	0.003^*
SUA, mg/dl	8.66	1.31	8.56	1.16	0.525	0.186
SCr, mg/dl	1.00	0.21	0.94	0.17	0.024	0.630
CCr, ml/min/1.73m²	90.54	24.28	100.36	21.94	0.001	0.990
Cua, ml/min/1.73m²	4.95	1.40	5.17	1.40	0.260	0.724
Cua/CCr, %	5.69	1.66	5.23	1.29	0.014	0.209
Exua, mg/h	27.57	8.82	28.22	8.18	0.562	0.072

SUA and SCr were measured by an enzymatic method. SUA: Serum uric acid value; SCr: serum creatinine value; CCr: creatinine clearance; Cua: uric acid clearance; Exua: urinary uric acid excretion per hour.
↵* Significant.