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Iron Status of Women and Young Children in the United States

Iron Status of Toddlers, Non-pregnant, and Pregnant Women in the United States

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03274726
Acronym
NHANES
Enrollment
5000
Registered
2017-09-07
Start date
1999-01-01
Completion date
2010-12-01
Last updated
2024-05-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Iron-deficiency, Nutritional Deficiency

Brief summary

This analysis describes the distribution of TBI and the prevalence of iron deficiency (ID) and iron deficiency anemia (IDA) among toddlers, non-pregnant women, and pregnant women.

Detailed description

Background: Total body iron stores (TBI), which are calculated from serum ferritin (SF) and soluble transferrin receptor (sTfR) concentrations, can be used to assess the iron status of populations in the United States. Objective: This analysis describes the distribution of TBI and the prevalence of iron deficiency (ID) and iron deficiency anemia (IDA) among toddlers, non-pregnant women, and pregnant women. Design: Investigators analyzed data from NHANES; toddlers aged 12-23 mo (NHANES 2003-2010), non-pregnant women aged 15-49 y (NHANES 2007-2010), and pregnant women aged 12-49 y (NHANES 1999-2010). Investigators used SAS survey procedures to plot distributions of TBI and produce prevalence estimates of ID and IDA for each target population. All analyses were weighted to account for the complex survey design

Interventions

None listed

Sponsors

Centers for Disease Control and Prevention
Lead SponsorFED

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
12 Months to 49 Years
Healthy volunteers
Yes

Inclusion criteria

Included: * Children ages 12-23 months and Women ages 12-49 years * Those who completed the MEC Excluded: \- Those missing data on iron biomarkers

Design outcomes

Primary

MeasureTime frameDescription
Iron Deficiency1999-2010Total Body Iron \<0 mg/kg

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026