NHANES Urinary Sodium Calibration Study
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ClinicalTrials.gov Identifier: NCT01631240 |
Recruitment Status :
Completed
First Posted : June 29, 2012
Last Update Posted : July 26, 2016
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Condition or disease |
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Nutrition Assessment |
Study Type : | Observational |
Actual Enrollment : | 441 participants |
Time Perspective: | Cross-Sectional |
Official Title: | National Health and Nutrition Examination Survey (NHANES), Urinary Sodium Calibration Study |
Study Start Date : | June 2011 |
Actual Primary Completion Date : | August 2011 |
Actual Study Completion Date : | August 2011 |
Group/Cohort |
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Adults 18-39 years
Healthy adults aged 18-39 years
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- Usual sodium intake [ Time Frame: one day ]Usual sodium intake based on 24-hour sodium excretions (two measurements for a one-third subset 4-11 days after the first collection) using measurement error models
- Usual potassium intake [ Time Frame: one day ]Usual potassium intake based on 24-hour potassium excretions (two measurements for a one-third subset) using measurement error models
- Creatinine excretion [ Time Frame: one day ]Based on 24-hour creatinine excretion
- Usual iodine intake [ Time Frame: one day ]Usual sodium intake based on 24-hour sodium excretions (two measurements for a one-third subset 4-11 days after the first collection) using measurement error models
Biospecimen Retention: Samples Without DNA

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Ages Eligible for Study: | 18 Years to 39 Years (Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
English speaking
- Aged 18-39 years old
- 50% Black; 50% all other
- 50% male; 50% female
- At least 50 (25 male; 25 female) of the 400 participants likely to have high sodium diet indicated by selected dietary behaviors
- At least 50 (25 male; 25 female) of the 400 participants likely to have low sodium diet indicated by selected dietary behaviors
Exclusion Criteria:
- Pregnant or trying to get pregnant.
- Taking loop diuretics
- Chronic kidney disease
- New hypertension treatment or change in hypertension treatment in the last 2 weeks

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01631240
Principal Investigator: | Chia-Yih Wang, PhD | Centers for Disease Control and Prevention | |
Principal Investigator: | Mary Cogswell, DrPH | Centers for Disease Control and Prevention | |
Principal Investigator: | Catherine Loria, PhD | National Institutes of Health (NIH) | |
Principal Investigator: | Christine Swanson, PhD | National Institutes of Health (NIH) |
Responsible Party: | Centers for Disease Control and Prevention |
ClinicalTrials.gov Identifier: | NCT01631240 |
Other Study ID Numbers: |
2011-10 |
First Posted: | June 29, 2012 Key Record Dates |
Last Update Posted: | July 26, 2016 |
Last Verified: | June 2012 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Data are available through the NCHS Research Data Center |
Sodium Potassium Iodine Creatinine |