TABLE 1.

Crude prevalence distribution of urolithiasis by demography

	Study cohort, n	Ultrasound confirmed prevalence
		N	%	P value
Total	1087	44	4.04
Gender				0.471
Male	486	22	4.5
Female	601	22	3.7
Age				0.646
18–24	63	2	3.2
25–54	595	27	4.5
55–64	254	8	3.1
>65	175	7	4.0
BMI				0.725
<18.5	39	2	5.1
18.5–22.9	199	8	4.0
23–24.9	178	6	3.4
>25	671	28	4.1
Family history
Yes	92	8	8.7	0.018
No	995	36	3.6