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Data & Research

Resource | Research | Benefit Content/Cost WIC Nutrition Services and Administration (NSA) Cost Study

The WIC Nutrition Services and Administration cost study examines how program funds are expended by state and local agencies to support the management and operation of WIC. The study analyzed data from a national survey of state and local agencies, cases studies, and FY 2013 WIC administrative data.

11/27/2017
Resource | Research | Participation Rates Estimates of WIC Eligibles and Program Reach in 2014

This report, the latest in a series of annual reports on WIC eligibility, presents 2014 national and state estimates of the number of people eligible for WIC benefits and the percent of the eligible population covered by the program, including estimates by participant category.

09/29/2017
Resource | Research | General/Other Planning for Future Data Collection Needs within WIC

This report explores WIC state agencies’ ability to collect, store, retrieve, and report data to meet policy and program management needs now and in the future.

06/01/2017
Resource | Research | Assessing/Improving Operations WIC Vendor Peer Group Study

The purpose of this study is to evaluate the effectiveness of state agencies current peer group systems, and to provide guidance to state agencies on how to evaluate and update their systems. Specifically, it uses empirical analysis to identify one or more effective models for establishing vendor peer groups that could apply to most state agencies.

05/31/2017
Resource | Research | Breastfeeding WIC Infant and Toddler Feeding Practices Study 2: Infant Year Report

The WIC Infant and Toddler Feeding Practices Study 2/“Feeding My Baby” Study captures data on WIC caregivers and their children over the first 5 years of each child’s life to address a series of research questions regarding feeding practices, the effect of WIC services on those practices, and the health and nutrition outcomes of children on WIC.

01/05/2017
Resource | Research | Food/Nutrient Analysis Review of WIC Food Packages: Improving Balance and Choice

The National Academies of Sciences, Engineering, and Medicine  convened an expert committee to review and assess the nutritional status and food and nutritional needs of the WIC-eligible population and provide recommendations based on its review and grounded in the most recently available science. The committee produced three reports as part of this task. 

01/05/2017
Resource | Research | National Academy of Sciences/IOM Review of WIC Food Packages: Proposed Framework for Revisions

The phase I interim report, is the second of three reports. The first report, the Evaluation of White Potatoes in the Cash Value Voucher: Letter Report, recommended allowing white potatoes for purchase with the cash value voucher. This second report presents the evidence, analyses, and framework that will be applied to develop the final report (phase II), which will include recommendations for potential modifications to the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) food packages.

08/01/2016
Resource | Research | Nutrition Education WIC Nutrition Education Study: Phase I Report

The WIC Nutrition Education Study (NEST) provides detailed information on WIC nutrition education services and includes the following two phases:

-- Phase I: Comprehensive nationally representative description of WIC nutrition education processes and features.

-- Phase II: Pilot study of the impact of WIC nutrition education on nutrition and other behaviors in six WIC sites.

This report presents the Phase I results of the study.

05/31/2016
Resource | Research | Assessing/Improving Operations WIC Participant and Program Characteristics 2014: Food Package Report

This report is a supplement to the WIC Participant and Program Characteristics 2014 biennial report. It describes the content of Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) food packages for packages or prescriptions issued to WIC participants in April 2014.

02/29/2016
Resource | Research | Participation Characteristics National and State-Level Estimates of WIC Eligibles and Program Reach 2013

This report offers updated estimates of the number of people eligible for WIC benefits in 2013, including (1) estimates by participant category (including children by single year of age) and coverage rates; (2) updated estimates in U.S. territories; and (3) confidence intervals. The national estimates presented in this report are based on a methodology developed in 2003 by the Committee on National Statistics of the National Research Council (CNSTAT). The report’s State-level estimates use a methodology developed by the Urban Institute that apportions the national figures using data from the American Community Survey.

12/17/2015
Page updated: May 01, 2024