Evidence map›Paper›PMID 31764729›Full record

Observational studyObstetrics and gynecology2019

Maternal Zika Virus Infection: Association With Small-for-Gestational-Age Neonates and Preterm Birth.

Hannah J Cooper, Martha Iwamoto, Maura Lash, Erin E Conners, Marc Paladini, Sally Slavinski, Anne D Fine, Joseph Kennedy, Dominique Heinke, Andrea Ciaranello and 2 more

Abstract readObservational Study
In one paragraph

Observational study in Obstetrics and gynecology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. FIGO good practice recommendations on preconception care: A strategy to prevent preterm birth.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
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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

12 authors.

Hannah J CooperBureau of Communicable Disease, New York City Department of Health and Mental Hygiene, Queens, and the Bureau of Vital Statistics, New York City Department of Health and Mental Hygiene, New York, New York; and the Harvard T. H. Chan School of Public Health and the Medical Practice Evaluation Center, Division of Infectious Disease, Massachusetts General Hospital, Boston, Massachusetts.
Martha Iwamoto
Maura Lash
Erin E Conners
Marc Paladini
Sally Slavinski
Anne D Fine
Joseph Kennedy
Dominique Heinke
Andrea Ciaranello
George R Seage
Ellen H Lee

Funding

Predoctoral Training Program in Reproductive, Perinatal & Pediatric EpidemiologyT32HD060454 · NICHD · HARVARD SCHOOL OF PUBLIC HEALTH · PI MICHELS, KARIN B · 2010 to 2014
$1.1M
NCEZID CDC HHS U50 CK000407NICHD NIH HHS T32 HD060454
6 · The paper itself

Abstract

objectiveTo evaluate whether antenatal Zika virus infection is associated with risk of having a small-for-gestational-age (SGA) neonate, risk of preterm birth, and lower mean birth weight of term neonates.

methodsFor this retrospective observational study, we linked birth record data for women who delivered liveborn singleton neonates in New York City in 2016 to data for pregnant women with Zika virus infection reported to the New York City Health Department. We restricted the analysis to nonsmoking, nonwhite women and adjusted for maternal characteristics. Among women with antenatal Zika virus infection, we used modified Poisson regression to assess risks of having an SGA neonate and of delivering preterm, and linear regression to assess the association of infection with mean birth weight of term neonates.

resultsOf 116,034 deliveries of singleton neonates in New York City in 2016, 251 (0.2%) were to women with antenatal Zika virus infection. A higher percentage of women with Zika virus infection delivered an SGA neonate compared with those without (11.2% vs 5.8%; adjusted relative risk [RR] 1.8; 95% CI 1.3-2.6). There was no difference in preterm birth prevalence for women with and without Zika virus infection (adjusted RR 1.0; 95% CI 0.69-1.6). Mean birth weight of term neonates born to women with Zika virus infection was 47 g less (95% CI -105 to 11 g); this difference was not statistically significant in crude or adjusted analyses.

conclusionFor a cohort of New York City women, antenatal Zika virus infection was associated with an increased risk of having an SGA neonate, but not preterm birth or lower mean birth weight of term neonates. This supports a putative association between Zika virus infection during pregnancy and SGA.

Indexed as

Infant, Small for Gestational AgePregnancy Complications, InfectiousZika Virus InfectionAdultCohort StudiesFemaleHumansInfant, NewbornNew York CityPregnancyPremature BirthPrenatal CareRetrospective StudiesYoung Adult

Identifiers

PMID31764729
PMCPMC7147828

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Registered trials

None linked

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.