Evidence map›Paper›PMID 32709377›Full record

ArticleFertility and sterility2020

Association between in vitro fertilization and ischemic placental disease by gestational age.

Katherine M Johnson, Michele R Hacker, Kim Thornton, Brett C Young, Anna M Modest

Open access · greenAbstract read
In one paragraph

Article in Fertility and sterility, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.7field-weighted citation impact, top 12% of its field
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

15 citing papers in PubMed, 28 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Katherine M JohnsonDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts.
Michele R HackerDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts.
Kim ThorntonDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts; Boston IVF, Waltham, Massachusetts.
Brett C YoungDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts.
Anna M ModestDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts. Electronic address: ammodest@bidmc.harvard.edu.
Harvard University · USBoston IVF · US

Funding

Harvard Clinical and Translational Science CenterUL1TR001102 · NCATS · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2013 to 2017
$106.2M
The Harvard Clinical and Translational Science CenterUL1TR002541 · NCATS · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2018 to 2022
$93.0M
BURPPE:BU Reproductive, Perinatal, and Pediatric Epidemiology Training ProgramT32HD052458 · NICHD · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WERLER, MARTHA M. · 2007 to 2016
$2.0M
NCATS NIH HHS UL1 TR001102NCATS NIH HHS UL1 TR002541NICHD NIH HHS T32 HD052458
6 · The paper itself

Abstract

objectiveTo evaluate the association between in vitro fertilization (IVF) and ischemic placental disease (IPD), stratified by gestational age.

designWe performed a secondary analysis of a retrospective cohort study of deliveries.

settingDeliveries were performed over 15 years at a single tertiary hospital. PATIENT(S): We included all parturients who had a live born infant or an intrauterine fetal demise (IUFD). INTERVENTION(S): We compared pregnancies resulting from IVF cycles to non-IVF pregnancies. MAIN OUTCOME MEASURE(S): The primary outcomes were preterm and term IPD (preeclampsia, placental abruption, small-for-gestational age infant [SGA], or an intrauterine fetal demise [IUFD] due to placental insufficiency). RESULT(S): Of the 69,084 deliveries during the study period, 3,763 (5.4%) were conceived with IVF. The incidence of preterm delivery was 32.6% in IVF pregnancies and 10.8% in non-IVF pregnancies. Multiple gestations were more common in IVF pregnancies. Compared to non-IVF pregnancies, IVF pregnancies were more likely to develop both preterm and term IPD, even after adjustment for maternal age and parity. The risk of preterm IPD was 4 times higher (95% confidence interval, 3.7-4.4) in patients who underwent IVF compared with those who did not undergo IVF. Among parturients who delivered at ≥37 weeks of gestation, IVF pregnancies had 1.7 times the risk of term IPD (95% confidence interval, 1.6-1.9) compared with non-IVF pregnancies. CONCLUSION(S): IVF was strongly associated with preterm IPD. We found a similar, but attenuated, association between IVF and term IPD. The stronger association with preterm IPD suggests an association between IVF and placental insufficiency.

Indexed as

Placental CirculationAdultFemaleFertilityFertilization in VitroFetal DeathFetal Growth RetardationGestational AgeHumansIncidenceInfertilityIschemiaLive BirthPlacentaPlacental InsufficiencyPregnancyAbruptionassisted reproductive technologyintrauterine fetal demiseintrauterine growth restrictionplacental insufficiency

Identifiers

PMID32709377
PMCPMC7487041
OpenAlexW3044897056

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.