Trends in Breastfeeding Disparity in U.S. Infants by WIC Eligibility and Participation

Trends in Breastfeeding Disparity in U.S. Infants by WIC Eligibility and Participation: Evidence From NHANES 1999-2014

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03390660

Acronym

WIC breastfeed

Enrollment

13771

Registered

2018-01-04

Start date

1999-01-01

Completion date

2014-12-31

Last updated

2018-01-04

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

Conditions

Breast Feeding

Brief summary

This is a secondary data analysis study that uses nationally representative data to examine the trends in breastfeeding disparities between Women, Infants, and Children (WIC) program eligible children vs. non-eligible children and eligible participants vs. eligible non-participants.

Interventions

OTHERWIC program participation

WIC program is a welfare program in the U.S. to provide nutritional supplements to low-income women, infants, and children.

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

1 Months to 72 Months

Healthy volunteers

Inclusion criteria

* infants or children surveyed in NHANES 1999-2014 aged younger than 72 months

Exclusion criteria

* infants or children with missing information in breastfeeding, WIC participation, or other major socio-demographics, such as income

Design outcomes

Primary

Measure	Time frame	Description
Everbreastfeeding	till age 5	whether the child has ever been breastfed
Breastfeeding at 6 months	till age 6 months	whether the child was breastfed at age 6 months

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026