National Health and Nutrition Examination Survey 24-hour Urine Collection Feasibility Study, 2013

Study Overview
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Brief Summary
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A 24-hour urine pilot study was conducted as part of the 2013 NHANES to test the feasibility of implementing a 24-hour urine collection as part of NHANES in 2014.

Detailed Description
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The 24-hour urine pilot study was conducted March - June 2013 in three NHANES locations. A random half-sample of non-pregnant US adults, aged 20-69 who were examined in the NHANES mobile examination center were selected. Participants received instructions, started and ended the urine collection in a urine study mobile examination center (UMEC), and answered questions about collection. A random half of participants who collected a complete 24-h urine were asked to collect a second 24-h urine. Urinary sodium, potassium, chloride, and creatinine excretion were analyzed. Participation rates in two other post-examination components, the Physical Activity Monitor and the Dietary Recall, were monitored to determine whether collecting a 24-hour urine had an effect on response rates for the two components.

Official Title
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National Health and Nutrition Examination Survey 24-Hour Urine Collection Feasibility Study, 2013

Conditions
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Hypertension

Intervention / Treatment
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* Other: Collect 24-hour urine specimen


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 20-69 year old adults examined in the NHANES mobile examination center Exclusion Criteria: pregnant, unable to respond for themselves

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 69 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Other: Collect 24-hour urine specimen|A random half sample of NHANES participants 20-69 examined in the mobile examination center were asked to collect a 24-hour urine specimen.|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Study completion rates - initial collection | Completion rate of initial 24-hour urine collection. | 24 hours | 
| Study completion rate - second collection | Completion rate of second 24-hour urine collection | 24 hours | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Response rates for the Physical Activity Monitor | Response rates for the Physical Activity Monitor | 24-hours | 
| Response rates for the Phone Follow-up Dietary Recall | Response rates for the Phone Follow-up Dietary Recall. | 24-hours | 
| Urine volume for the initial urine collection | Urine volume adjusted to 24 hours, initial urine collection | 24 hours | 
| Urine volume for the second urine collection | Urine volume adjusted to 24 hours, second urine collection | 24 hours | 
| Urinary sodium excretion for the initial urine collection | 24-hour urinary sodium excretion, initial urine collection | 24 hours | 
| Urinary sodium excretion for the second urine collection | 24-hour urinary sodium excretion, second urine collection | 24 hours |