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Association between low-testosterone and kidney stones in US men: The national health and nutrition examination survey 2011-2012.

ABSTRACT: The purpose of this study was to determine the association between low-testosterone (total testosterone ?3?ng/mL) and prevalence of kidney stones (KS) in men 20?years and older, and whether this varies by comorbidities, and race/ethnicity, and age. This was a cross-sectional study with data from the National Health and Nutrition Examination Survey (NHANES) 2011-2012?cycle. We found that men with low-testosterone had 41% lower odds of KS as compared to men without low-testosterone after multivariable adjustment (OR: 0.59, 95% CI 0.40-0.86). When stratified by obesity, obese men with low-testosterone had 59% lower odds of KS. When stratified by HDL, men with HDL???40?mg/dL and with low-testosterone had 40% lower odds of KS. When stratified by diabetes, men without diabetes with low-testosterone had 39% lower odds of KS, but the association was not significant in diabetic men with low-testosterone and other comorbidities. There were significant differences when stratified by race/ethnicity. Finally, when stratified by age, only the subgroup of men ?40-<60?years old with low-testosterone had 68% lower odds of KS (OR: 0.32, 95% CI: 0.16-0.67). The association between low-testosterone and KS was inversed. Similar associations were identified when stratified by obesity, diabetes, dyslipidemia, race/ethnicity and age.

SUBMITTER: Yucel E

PROVIDER: S-EPMC5984232 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature

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Association between low-testosterone and kidney stones in US men: The national health and nutrition examination survey 2011-2012.

Yucel Emre E DeSantis Stacia S Smith Mary A MA Lopez David S DS

Preventive medicine reports 20180406

The purpose of this study was to determine the association between low-testosterone (total testosterone ≤3 ng/mL) and prevalence of kidney stones (KS) in men 20 years and older, and whether this varies by comorbidities, and race/ethnicity, and age. This was a cross-sectional study with data from the National Health and Nutrition Examination Survey (NHANES) 2011-2012 cycle. We found that men with low-testosterone had 41% lower odds of KS as compared to men without low-testosterone after multivari ...[more]

PMID: 29868376

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Project description:Background/objectivesStudies on the impact of dietary fiber intake on kidney stones are few, and their results were controversial. This study aimed to explore the association between dietary fiber intake and kidney stones in the nationally representative population of the USA.Subjects/methodsThis cross-sectional research included 8,588 participants from the National Health and Nutrition Examination Survey, 2011 to 2018. Information regarding dietary fiber intake was obtained from a 24-h recall survey. Participants were categorized into different dietary fiber intake tertiles according to the average of 2 days of dietary recall data. The outcome was self-reported kidney stones. After adjusting for the traditional risk factors, a multivariate logistic regression model was used to examine the association between dietary fiber intake and kidney stones.ResultsEight hundred seventy-two participants had kidney stones. The weighted prevalence (SE) of kidney stones in the lowest tertile, medium tertile, and highest tertile of dietary fiber intake was 11.8% (0.8%), 10.3% (0.8%), and 9.1% (0.8%), respectively. After adjusting for age, sex, race and ethnicity, education level, smoking status, alcohol consumption, physical activity, body mass index, hypertension, diabetes, dyslipidemia, daily water intake, chronic kidney disease stage 3-5, and total energy intake, participants with the highest tertile of fiber intake had a significantly lower risk of kidney stones (odds ratio [OR], 0.68; 95% confidence interval [CI], 0.48-0.95) compared to those in the lowest tertile. Every 5 g/day increment in dietary fiber intake was associated with a significant decrease in risk of kidney stones (OR, 0.90; 95% CI, 0.83-0.98).ConclusionAn increase in dietary fiber intake was associated with a lower risk of kidney stones, suggesting adults should be encouraged to maintain an adequate dietary fiber intake to prevent the development of kidney stones. Our results provide evidence to formulate nutrition management strategies for the prevention of kidney stones.

Project description:IntroductionThe risk of kidney stones in metabolically healthy obesity (MHO) individuals is largely unexplored. This study using percent body fat (%BF) to categorize obesity, to investigate the association between MHO as well as other metabolic syndrome-obesity combined phenotypes and kidney stones in a national representative population.Materials and methodsThis cross-sectional study included 4,287 participants in the National Health and Nutrition Examination Survey from 2011 to 2018. Metabolically healthy status was defined as not having any component of metabolic syndrome or insulin resistance. Obesity was identified by %BF, which was measured and assessed by dual-energy x-ray absorptiometry (DXA) scan. Participants were cross-classified by metabolic health and obesity status. The outcome was self-report kidney stones. Multivariable logistic regression model was used to examine the association between MHO and kidney stones.ResultsA total of 358 participants had kidney stones [weighted prevalence (SE): 8.61% (0.56%)]. The weighted prevalence (SE) of kidney stones in MHN, MHOW, and MHO groups was 3.13% (1.10%), 4.97% (1.36%), and 8.55% (2.09%), respectively. After adjusting for age, sex, race and ethnicity, education level, smoking status, alcohol consumption, physical activity, daily water intake, CKD stage 3-5, and hyperuricemia, MHO individuals (OR: 2.90, 95% CI: 1.18, 7.0) had a significantly higher risk of kidney stones than those with metabolically healthy normal weight. In metabolically healthy participants, a 5% increment in %BF was associated with a significantly higher risk of kidney stones (OR: 1.60, 95% CI: 1.20, 2.14). Furthermore, a nonlinear dose-response relationship between %BF and the kidney stones was observed in metabolically healthy participants (P for non-linearity = 0.046).ConclusionUsing %BF to define obesity, MHO phenotype was significantly associated with higher risks of kidney stones, suggesting that obesity can independently contribute to kidney stones in the absence of metabolic abnormalities and insulin resistance. Regarding kidney stones prevention, MHO individuals might still benefit from lifestyle interventions aimed at healthy body composition maintenance.

Project description:BackgroundReexamining the prevalence of persons infected with tuberculosis (TB) is important to determine trends over time. In 2011-2012 a TB component was included in the National Health and Nutrition Examination Survey (NHANES) to estimate the reservoir of persons infected with TB.MethodsCivilian, noninstitutionalized U.S. population survey participants aged 6 years and older were interviewed regarding their TB history and eligibility for the tuberculin skin test (TST) and interferon gamma release assay (IGRA) blood test. Once eligibility was confirmed, both tests were conducted. Prevalence and numbers of TST positive (10 mm or greater), IGRA positive, and both TST and IGRA positive were calculated by adjusting for the complex survey design after applying corrections for item nonresponse and digit preference in TST induration measurements. To examine TST positivity over time, data from NHANES 1999-2000 were reanalyzed using the same statistical methods. The TST was performed using Tubersol, a commercially available purified protein derivative (PPD), rather than PPD-S, which was the antigen used in NHANES 1999-2000. Prior patient history of TB vaccination was not collected in this study nor were patients examined for the presence of a Bacillus of Calmette and Guerin (BCG) vaccine scar.ResultsFor NHANES 2011-2012, TST and IGRA results were available for 6,128 (78.4%) and 7,107 (90.9%) eligible participants, respectively. There was no significant difference between the percentage of the U.S. population that was TST positive in 2011-2012 (4.7% [95% CI 3.4-6.3]; 13,276,000 persons) compared with 1999-2000 (4.3%; 3.5-5.3). In 2011-2012 the percentage that was IGRA positive was 5.0% (4.2-5.8) and double TST and IGRA positivity was 2.1% (1.5-2.8). The point estimate of IGRA positivity prevalence in foreign-born persons (15.9%; 13.5-18.7) was lower than for TST (20.5%; 16.1-25.8) in 2011-2012. The point estimate of IGRA positivity prevalence in U.S.-born persons (2.8%; 2.0-3.8) was higher than for TST (1.5%; 0.9-2.6).ConclusionsNo statistically significant decline in the overall estimated prevalence of TST positivity was detected from 1999-2000 to 2011-2012. The prevalence of TB infection, whether measured by TST or IGRA, remains lower among persons born in the United States compared with foreign-born persons.

Project description:BackgroundCognitive impairment is common among persons with chronic kidney disease (CKD), due in part to reduced kidney function. Given that physical activity (PA) is known to mitigate cognitive decline, we examined whether associations between CKD stage and global/domain-specific cognitive function differ by PA.MethodsWe leveraged 3223 participants (≥60 years of age) enrolled in National Health and Nutrition Examination Survey (NHANES, 2011-2014), with at least one measure of objective cognitive function [immediate recall (CERAD-WL), delayed recall (CERAD-DR), verbal fluency (AF), executive function/processing speed (DSST), global (average of four tests) or self-perceived memory decline (SCD)]. We quantified the association between CKD stage {no CKD: estimated glomerular filtration rate [eGFR] ≥60 mL/min/1.73 m2 and albuminuria [albumin:creatinine ratio (ACR)] <30 mg/g; stages G1-G3: eGFR ≥60 mL/min/1.73 m2 and ACR ≥30 mg/g or eGFR 30-59 mL/min/1.73 m2; stages G4 and G5: eGFR <30 mL/min/1.73 m2} and cognitive function using linear regression (objective measures) and logistic regression (SCD), accounting for sampling weights for nationally representative estimates. We tested whether associations differed by PA [Global Physical Activity Questionnaire, high PA ≥600 metabolic equivalent of task (MET) · min/week versus low PA <600 MET · min/week] using a Wald test.ResultsAmong NHANES participants, 34.9% had CKD stages G1-G3, 2.6% had stages G4 and G5 and 50.7% had low PA. CKD stages G4 and G5 were associated with lower global cognitive function {difference = -0.38 standard deviation [SD] [95% confidence interval (CI) -0.62 to -0.15]}. This association differed by PA (Pinteraction = 0.01). Specifically, among participants with low PA, those with CKD stages G4 and G5 had lower global cognitive function [difference = -0.57 SD (95% CI -0.82 to -0.31)] compared with those without CKD. Among those with high PA, no difference was found [difference = 0.10 SD (95% CI -0.29-0.49)]. Similarly, the CKD stage was only associated with immediate recall, verbal fluency, executive function and processing speed among those with low PA; no associations were observed for delayed recall or self-perceived memory decline.ConclusionsCKD is associated with lower objective cognitive function among those with low but not high PA. Clinicians should consider screening older patients with CKD who have low PA for cognitive impairment and encourage them to meet PA guidelines.

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Association between low-testosterone and kidney stones in US men: The national health and nutrition examination survey 2011-2012.

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Association between low-testosterone and kidney stones in US men: The national health and nutrition examination survey 2011-2012.

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