The WIC Participant and Program Characteristics (PC 2004) report summarizes demographic characteristics of WIC participants nationwide in April 2004, along with information on participant income and nutrition risk characteristics. A national estimate of breastfeeding initiation for WIC infants is included. The report also describes WIC members of migrant farm-worker families.

FNS published “The WIC Vendor Management Study, 1998” in July 2001 which examined, in part, the extent to which retail grocers, defined as WIC “vendors” were violating program rules and regulations. The 1998 study is a follow-up to the “WIC Vendor Issues Study, 1991” published by FNS in May 1993. 

The Association of State and Territorial Public Health Nutrition Directors, with support from a cooperative agreement with USDA, conducted a census of the professional and paraprofessional public health nutrition workforce in the states and territories. ASTPHND has conducted periodic profiles of the public health nutrition workforce since 1985. Members of ASTPHND in their respective states and territories conducted the census reported in this paper during 1999-2000. Prior to this, ASTPHND's last survey was conducted in 1994.

The 1994 study of WIC program and participant characteristics (PC94), like the 1992 study (PC92), is substantially different from earlier efforts to collect data on WIC participants. PC94 employs the prototype reporting system which was developed by FNS for the 1992 study and which routinizes the collection of participant information from state WIC agencies. 

This study is an analysis of very low birthweight among Medicaid newborns and the effect of prenatal WIC participation on the likelihood of very low birthweight.