A comparative analysis of effects of early versus late prenatal WIC participation on birth weight: NYS, 1995.
OBJECTIVES: This study examined the effects of prenatal participation in the NYS WIC Program on birth weight through enhanced control of selection bias and gestational age bias. Program effects were assessed separately for White, Black, and Hispanic women and subpopulations defined by values of Kote...
| Publicado en: | Maternal & Child Health Journal Vol. 8; no. 2; pp. 77 - 87 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Springer Nature
Jun2004
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106656248&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106656248 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10927875 N9J jtl: Maternal & Child Health Journal issn: 10927875 maglogo: N pubinfo: dt: Jun2004 vid: 8 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 106656248 106656248 2004170782 10.1023/b:maci.0000025730.02966.62 NLM15198175 106656248 ppf: 77 ppct: 10 formats: fmt: @attributes: type: P tig: atl: A comparative analysis of effects of early versus late prenatal WIC participation on birth weight: NYS, 1995. aug: au: Lazariu-Bauer V Stratton H Pruzek R Woelfel ML affil: New York State Department of Health, Division of Nutrition, Evaluation and Analysis Unit, New York sug: subj: Birth Weight Evaluation Food Services Utilization Prenatal Care Utilization Clinical Assessment Tools Comparative Studies Confidence Intervals Descriptive Statistics Female Gestational Age Health Resource Utilization Classification Infant, Newborn Medical Record Linkage Models, Statistical New York Pregnancy Pregnancy Outcomes Probability Race Factors Record Review Retrospective Design Selection Bias Statistical Significance Time Factors Vital Statistics Human Infant, Newborn: birth-1 month Female ab: OBJECTIVES: This study examined the effects of prenatal participation in the NYS WIC Program on birth weight through enhanced control of selection bias and gestational age bias. Program effects were assessed separately for White, Black, and Hispanic women and subpopulations defined by values of Kotelchuck index of adequacy of prenatal care utilization. METHODS: 1995 New York State Vital Statistics records were linked to WIC certifications, administrative and check redemption files, and to the 1990 federal census of NY county level data. The final data set contained 77,601 records. Birth weight among WIC participants who enrolled early and participated longer were compared to those who enrolled late and participated a shorter time. Selection bias was addressed using classification tree methods as part of a propensity score analysis. Gestational age bias was addressed by analyzing preterm and full-term pregnancies separately. RESULTS: Adjusted estimates showed a significant positive effect of longer prenatal WIC participation on birth outcomes for all groups studied. Infants born to WIC participants who enrolled early were heavier than those who enrolled late by, on average, 70 g for full-term and 129 grams for preterm. Black and Hispanic full-term infants experienced larger WIC effects than Whites (79, 75, 43 g, respectively). Looking at full-term pregnancies using Kotelchuck's index indicated that effects of longer prenatal WIC participation were greatest for the inadequate prenatal care group (83 g). CONCLUSION: Longer prenatal WIC participation was associated with an increase in birth weight overall and for all groups studied. The effect on birth weight of longer participation in WIC was greatest in Black and Hispanic, inadequate and no prenatal care groups. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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