The Influence of Pre-natal Supplement Initiation on Preterm Birth Among Majority Hispanic Women in Los Angeles County: The Role of Nativity.

Vivian H Alfonso, Ondine von Ehrenstein, Gretchen Bandoli, Beate Ritz

Abstract read

In one paragraph

Article in Maternal and child health journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it

0cells of the map it votes in

5citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

Neighborhood Diversity Is Good for Your Health: An Example of Racial/Ethnic Integration and Preterm Birth in Texas.Journal of racial and ethnic health disparities · 2025
Article
Social Determinants of Health Among Pregnant Hispanic Women and Associated Psychological Outcomes.Journal of racial and ethnic health disparities · 2025
Article
Nativity and perinatal outcome disparities in the United States: Beyond the immigrant paradox.Seminars in perinatology · 2022
Review
The Hispanic/Latinx Perinatal Paradox in the United States: A Scoping Review and Recommendations to Guide Future Research.Journal of immigrant and minority health · 2021
Article
Early Folic Acid Supplement Initiation and Risk of Adverse Early Childhood Respiratory Health: A Population-based Study.Maternal and child health journal · 2018
Article

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Vivian H AlfonsoDepartment of Epidemiology, University of California, Los Angeles, Fielding School of Public Health, Box 951772, Los Angeles, CA, 90095, USA. vivianhelena@ucla.edu.

Ondine von EhrensteinDepartment of Community Health Sciences, University of California, Los Angeles, Fielding School of Public Health, Box 951772, Los Angeles, CA, 90095, USA.

Gretchen BandoliDepartment of Epidemiology, University of California, Los Angeles, Fielding School of Public Health, Box 951772, Los Angeles, CA, 90095, USA.

Beate RitzDepartment of Epidemiology, University of California, Los Angeles, Fielding School of Public Health, Box 951772, Los Angeles, CA, 90095, USA.

Funding

Air Pollution and Adverse Birth OutcomesR01ES010960 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R · 2001 to 2004

$921k

NIEHS NIH HHS R01 ES010960

6 · The paper itself

Abstract

Objectives Despite being encouraged to take pre-natal supplements, suboptimal micronutrient intake is common in pregnancy, especially among Hispanic women. In this study, we assessed whether initiation and timing of pre-natal vitamin use influences the risk of preterm birth. Methods Women who gave birth to singletons in 2003 in Los Angeles County, California, were enrolled into a population-based case-control study. Focusing on non-Hispanic white and Hispanic women, associations between timing of pre-natal supplement use and preterm birth were assessed using logistic regression. Results Among Hispanic mothers, the odds of preterm birth increased the later a woman initiated pre-natal supplement use in pregnancy. The magnitude of this association was larger in US-born compared to foreign-born Hispanic women. Conclusions These findings suggest that nativity may modify the relationship between pre-natal supplement use and preterm birth possibly due to underlying differences in diet composition of Hispanic women by place of birth.

Indexed as

Dietary SupplementsPreconception CarePremature BirthPrenatal CareAdultCaliforniaCase-Control StudiesEthnicityFemaleHealth SurveysHispanic or LatinoHumansInfant, NewbornPopulation SurveillancePovertyPregnancyVitaminsFolic acidMaternal public healthNutritional epidemiologyPreconception nutritionPrenatal nutritionPreterm birth

Identifiers

PMID27060911

DOI10.1007/s10995-016-1990-4

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.