Monday, March 24, 2014

The prevalence of renal stones in U S


Kidney stones affect approximately 1 in 11 people in the United States. 
The prevalence of kidney stones is 8.8% (95% confidence interval [CI], 8.1–9.5). Among men, the prevalence of stones is 10.6% (95% CI, 9.4–11.9), compared with 7.1% (95% CI, 6.4–7.8) among women. Kidney stones are 
more common among obese than normal-weight individuals (11.2% [95% CI, 10.0–12.3] compared with 6.1% [95% CI, 4.8–7.4], respectively; p < 0.001). Black, non-Hispanic and Hispanic individuals are less likely to report a history of stone disease than are white, non-Hispanic individuals (black, non-Hispanic: odds ratio [OR]: 0.37 [95% CI, 0.28–0.49], p < 0.001; Hispanic: OR: 0.60 [95% CI, 0.49–0.73], p < 0.001).

Obesity and diabetes are strongly associated with a history of kidney stones in multivariable models. The cross-sectional survey design limits causal inference regarding potential risk factors for kidney stones.

(Published by UCLA Department of Urology, University of California, Los Angeles, Los Angeles, CA, USA; bUCLA Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; cRAND Corporation, Santa Monica, CA, USA)

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