TABLE 1

The prevalence of kidney stones is increasing

NHANES study period	Men	Women
1976–1980²	4.9 ± 0.42^a	2.8 ± 0.17^a
1988–1994²	6.3 ± 0.56^a	4.1 ± 0.27^a
2007–2010¹	10.6 (9.4–11.9)^b	7.1 (6.4–7.8)^b

↵a Percent prevalence ± standard error of the mean
↵b Percent prevalence and 95% confidence interval
NHANES = National Health and Nutrition Examination Survey