More Women, Teens, Blacks Developing Kidney Stones
More teenagers, women and blacks are developing kidney stones, according to a study published online by _Clinical Journal of the American Society of Nephrology. _
Historically, middle-aged white men have been most likely to develop kidney stones, which involve small, hard mineral deposits that form in the kidneys, often when urine becomes concentrated.
Researchers analyzed data from South Carolina from 1997 to 2012, and found that the annual incidence of kidney stones among children and adults rose 16 percent during that time. The largest increases were among teens (4.7 percent a year), females (3 percent a year), and blacks (nearly 3 percent a year).
During the study period, the risk of kidney stones doubled among children, and there was a 45 percent increase in the lifetime risk for women. Teen girls had the highest rate of increase in kidney stones, and they were more common among females aged 10 to 24 than among males in the same age group. After age 25, kidney stones were more common in men. Kidney stone incidence rose 15 percent more in blacks than in whites during each five-year period of the study, according to the findings.
There may be a number of reasons for the rise in kidney stone rates, including not drinking enough water and poor eating habits, such as increased salt and decreased calcium intake.
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