An observational study in Folate Deficiency, sponsored by National Institute of Health and Nutrition. Completed. Open to participants aged 19 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-03-24.
Sponsored by National Institute of Health and Nutrition · Observational
This NHANES analysis compares self-reported dietary folate with serum and red blood cell folate status in U.S. adults.
Background: Public health concerns of both low and high folate status exist in the U.S. Recent publications have questioned the utility of self-reported dietary intake data in research and monitoring.
Objective: The purpose of this analysis was to examine the relationship between self-reported folate intakes and folate status biomarkers, and to evaluate their usefulness for several types of applications.
Design: Usual dietary intakes of folate were examined using the National Cancer Institute (NCI) method to adjust 2, 24-hour dietary recalls (including dietary supplements) for within-person variation and compared these intakes with serum and red blood cell (RBC) folate among 4,878 non-pregnant, non-lactating participants ≥19y in NHANES 2011-2012, a nationally representative, cross-sectional survey, with respect to consistency across prevalence estimates and rank order comparisons.
32 studies on the registry are indexed under Folic Acid Deficiency; 3 are open to participants now.
This study's enrollment of 4,878 is above the median of 280 across 17 observational studies indexed under Folic Acid Deficiency.
Browse Folic Acid Deficiency studies →National Institute of Health and Nutrition is the lead sponsor of 3 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
NHANES is a nationally-representative, cross-sectional study of nutrition and health for individuals residing in the U.S.
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Exclusion Criteria:
No intervention
Folate status
Comparison of folate in diet and blood
Time frame: Up to 24 months
No study locations are listed for this record.
Plan to share: Undecided
No publications or documents are linked to this record.
Ran from Jan 2011 to primary completion in Dec 2012, 23 months.
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This study is completed, as verified in Mar 2017. You cannot join it, but the record below documents what was studied.
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National Institute of Health and Nutrition