and women, the weighted prevalence increased with age;
these effects were observed among all racial/ethnic groups
(Table 3). Similar results were seen for the secondary
outcome of symptomatic stone disease, although the point
estimates were slightly lower (Table 1).
Variation in the prevalence of stone disease existed
among different racial/ethnic groups (Table 3). The prevalence
of stone disease was highest among non-Hispanic
white individuals, at 10.3% (95% CI, 9.4–11.1). Other ethnic/
racial groups had a lower prevalence of stone disease.
Among Hispanic individuals, the prevalence of kidney
stones was 6.4% (95% CI, 5.6–7.3), and among black,
non-Hispanic individuals, the prevalence was 4.3%