The National Survey of WIC Participants (NSWP) study series is designed to describe state and local agency characteristics, examine participants’ characteristics, assess participants’ experiences with WIC, and estimate improper payments resulting from certification errors in WIC. The study is conducted approximately every 10 years, and the current study is the third iteration (NSWP-III) in the series.
This study primarily uses 2011–2016 National Health and Nutrition Examination Survey (NHANES) data to examine bivariate relationships between reported WIC participation and outcomes including diet quality, indicators of nutrition and health, food consumption patterns, and nutrient intakes among 1- to 4-year-old children. Most results presented in this report are unadjusted and descriptive only, and do not infer causality. They are intended to contribute to the evidence base needed to inform future research and, subsequently, WIC policy and practice.
This report supplements FNS administrative data on total food costs by estimating the average monthly food costs for each WIC participant category and food package type. It also estimates total pre- and post-rebate dollars spent on 18 major categories of WIC-eligible foods in FY 2018.
The WIC Infant and Toddler Feeding Practices Study 2 (WIC ITFPS-2)/ “Feeding My Baby” Study is the only national study to capture data on caregivers and their children over the first 6 years of the child's life regardless of their continued participation in WIC. Overall, the study examines child-feeding practices, associations between WIC services and those practices, and the health and nutrition outcomes of children who received WIC around birth. This report, the fifth in the series generated from this study, focuses on the dietary intake patterns and weight status of children during the fourth year of life. The report also examines families' WIC experiences and their perceptions of the program's impact.
The biennial WIC Participant and Program Characteristics Report describes a census of all participants in WIC. The most recent report (PC 2016) reflects state management information systems data from April 2016, and this Food Package Report is a supplemental analysis of that data. While PC 2016 summarizes participant characteristics, this report summarizes the food packages, or prescriptions, that state agencies issued to these participants.
This report supplements FNS administrative data on food package costs by estimating the average monthly food costs for each WIC participant category and food package type. It also estimates total pre- and post-rebate dollars spent on 17 major categories of WIC-eligible foods in FY 2014. This report is an update to the previous WIC Food Package Cost Report for FY 2010.
Phase II was a methodological study, conducted in six sites during 2015–2016, to test an approach to determine its feasibility for a national evaluation.
The USDA Food and Nutrition Service’s 1990 WIC Medicaid Study I found that prenatal WIC participation was associated with improved birth outcomes and savings in Medicaid costs. A 2003 study by Buescher, et al., found that WIC participation during childhood was associated with increased health care utilization and Medicaid costs, and concluded that WIC enhanced children’s linkages to the health care system.
The WIC Infant and Toddler Feeding Practices Study 2 (WIC ITFPS-2)/ “Feeding My Baby” Study captures data on caregivers and their children over the first 5 years of the child’s life after WIC enrollment to address a series of research questions regarding feeding practices, associations between WIC services and those practices, and the health and nutrition outcomes of children receiving WIC.
This is a report of the National Academies' Institute of Medicine (Food and Nutrition Board), published here by permission.