Estimating Eligibility and Participation for the WIC Program Final Report (2003) / Chapter Skim
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Appendix A: Data Sources and Coverage Issues
Appendix A: Data Sources and Coverage Issues
Pages 169-178
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From page 169... ...
The appendix also addresses two issues of survey coverage that were raised in response to the panel's interim report (National Research Council, 20011: the coverage of undocumented immigrants and the coverage of military populations. DATA SOURCES The March CPS is the data set currently used to estimate WIC eligibility and participation.
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From page 170... ...
In addition to the information collected in the monthly survey, the March CPS collects data on household income, participation in federal programs, and demographic characteristics of the household. The March CPS is a cross-sectional household survey of the civilian noninstitutionalized population of the United States.
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From page 171... ...
A key advantage of the March CPS for estimating WIC eligibility and participation is that it is conducted and released on a regular and timely basis. Every year the March supplement is conducted in March and data are released in the fall of the same year.
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From page 172... ...
Because SIPP is longitudinal, it is possible, by construction, to directly estimate the number of pregnant and postpartum women by observing infants in the sample The survey does not collect information on the breastSeeding status of postpartum women. The SIPP collects detailed information on each household's income, including all the sources of income used to determine WIC eligibility.
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From page 173... ...
WIC has no special rules for military personnel and their family members living in the United States. We also briefly discuss estimates of the number of eligible people in the U.S.
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From page 174... ...
, takes the base population projections from the census year 1990, adds births and subtracts deaths from birth and death records, and adds net immigration from INS administrative records. The estimated population of the United States in 2000 based on DA was 279.6 million.
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From page 175... ...
The weighting scheme used tried to match the CPS population (civilian noninstitutionalized population) to the 2000 census population (all persons in the United States)
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From page 176... ...
Housing allowances received because a family member is enlisted in the military may be counted as income when the income eligibility of a WIC applicant is being determined. The CPS March Income Supplement does not specifically ask for income from housing allowances or other benefits specific to military personnel.
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From page 177... ...
As a crude check on this method, Table As L uses WIC administrative data on the number of participants in the territories and in the United States and shows the ratio of participants in the territories to participants in the United States. From 1996 to 2000, the ratio was consistently 3.2 percent.
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From page 178... ...
could be added to the total number of WIC income-eligible persons by category. This adjustment factor could be based on any difference in WIC participation rates between the United States and its territories.
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