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.
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.
Study Type
OBSERVATIONAL
Enrollment
282
A random half sample of NHANES participants 20-69 examined in the mobile examination center were asked to collect a 24-hour urine specimen.
National Health and Nutrition Examination Survey
Hyattsville, Maryland, United States
Study completion rates - initial collection
Completion rate of initial 24-hour urine collection.
Time frame: 24 hours
Study completion rate - second collection
Completion rate of second 24-hour urine collection
Time frame: 24 hours
Response rates for the Physical Activity Monitor
Response rates for the Physical Activity Monitor
Time frame: 24-hours
Response rates for the Phone Follow-up Dietary Recall
Response rates for the Phone Follow-up Dietary Recall.
Time frame: 24-hours
Urine volume for the initial urine collection
Urine volume adjusted to 24 hours, initial urine collection
Time frame: 24 hours
Urine volume for the second urine collection
Urine volume adjusted to 24 hours, second urine collection
Time frame: 24 hours
Urinary sodium excretion for the initial urine collection
24-hour urinary sodium excretion, initial urine collection
Time frame: 24 hours
Urinary sodium excretion for the second urine collection
24-hour urinary sodium excretion, second urine collection
Time frame: 24 hours
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