4.3 Article

Relationship between urine specific gravity and the prevalence rate of kidney stone

期刊

TRANSLATIONAL ANDROLOGY AND UROLOGY
卷 10, 期 1, 页码 184-195

出版社

AME PUBL CO
DOI: 10.21037/tau-20-929

关键词

Kidney stone; wine specific gravity (USG); prevalence; National Health and Nutrition Examination Survey; cross-sectional survey

资金

  1. National Natural Science Foundation of China [81572517, 81872089]
  2. Natural Science Foundation of Jiangsu Province [BK20161434]
  3. Jiangsu Provincial Medical Innovation Team [CXTDA2017025]
  4. Jiangsu Provincial Medical Talent [ZDRCA2016080]

向作者/读者索取更多资源

The study found a significant correlation between urine specific gravity and the prevalence rate of kidney stones, with the prevalence rate increasing as urine specific gravity increases. Therefore, urine specific gravity may be an important indicator for early screening of risk factors for kidney stones.
Background: The purpose of this study was to evaluate the relationship between urine specific gravity (USG) and the prevalence rate of kidney stone. Methods: We conducted a cross-sectional study of adult participants (>= 20 years) of the National Health and Nutrition Examination Survey (NHANES) from 2007 to 2008. The USG was divided into three groups: <1.008, 1.008-1.020 and >1.020. Univariate and multivariate logistic regression analysis was used to determine the effect of USG on the prevalence rate of kidney stone. Results: A total of 4,791 patients were included in this study, of which 464 (9.7%) reported a history of kidney stone. Univariate logistic regression analysis showed that age, gender, race, hypertension, diabetes, body mass index (BMI), estimated glomerular filtration rate (eGFR), USG and urine creatinine were dosely related to the prevalence of kidney stones. After adjusting for known confounding factors, multivariate logistic regression showed that the prevalence rate of kidney stone increased with the increase of USG (1.008-1.020 vs. <1.008, OR =1.31, 95% CI, 0.09-1.91, P=0.155; >1.020 vs. <1.008, OR =1.71, 95% CI, 1.16-2.54, P=0.007). Conclusions: The increase of USG was significantly correlated with self-reported kidney stone. This finding helps to identify risk factors for kidney stones as early as possible in the United States.

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