Evidence map›Paper›PMID 34255860›Full record

ArticleActa obstetricia et gynecologica Scandinavica2021

Changes in obstetric interventions and preterm birth during COVID-19: A nationwide study from Iceland.

Kristjana Einarsdóttir, Emma Marie Swift, Helga Zoega

Abstract read
In one paragraph

Article in Acta obstetricia et gynecologica Scandinavica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 4 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

27 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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  13. Managing Labour in Women with COVID-19.Journal of clinical medicine · 2023
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  18. Changes in preterm birth during the COVID-19 pandemic by duration of exposure and race and ethnicity.Journal of perinatology : official journal of the California Perinatal Association · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Kristjana EinarsdóttirCenter of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland.ORCID https://orcid.org/0000-0003-4931-7650
Emma Marie SwiftFaculty of Nursing/Department of Midwifery, University of Iceland, Reykjavík, Iceland.
Helga ZoegaCenter of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPrevious evidence has been conflicting regarding the effect of coronavirus disease 2019 (COVID-19) pandemic lockdowns on obstetric intervention and preterm birth rates. The literature to date suggests potentially differential underlying mechanisms based on country economic setting. We aimed to study these outcomes in an Icelandic population where uniform lockdown measures were implemented across the country. MATERIAL AND

methodsThe study included all singleton births (n = 20 680) during 2016-2020 identified from the population-based Icelandic Medical Birth Register. We defined two lockdown periods during March-May and October-December in 2020 according to government implemented nationwide lockdown. We compared monthly rates of cesarean section, induction of labor and preterm birth during lockdown with the same time periods in the 4 previous years (2016-2019) using logit binomial regression adjusted for confounders.

resultsOur results indicated a reduction in the overall cesarean section rate, which was mainly evident for elective cesarean section, both during the first (adjusted odd ratio [aOR] 0.71, 95% CI 0.51-0.99) and second (aOR 0.72, 95% CI 0.52-0.99) lockdown periods, and not for emergency cesarean section. No change during lockdown was observed in induction of labor. Our results also suggested a reduction in the overall preterm birth rate during the first lockdown (aOR 0.69, 95% CI 0.49-0.97) and in the months immediately following the lockdown (June-September) (aOR 0.67, 95% CI 0.49-0.89). The reduction during the first lockdown was mainly evident for medically indicated preterm birth (although not statistically significant) and the reduction during June-September was mainly evident for spontaneous preterm birth.

conclusionsThis study suggested a reduction in elective cesarean section during COVID-19 lockdown, possibly reflecting changes in prioritization of non-urgent health care during lockdown. We also found a reduction in overall preterm birth during the first lockdown and spontaneous preterm birth following the first lockdown, but further research is needed to shed light on the underlying mechanisms for these findings.

Indexed as

AdultCesarean SectionCOVID-19FemaleGestational AgeHumansIcelandInfant, NewbornLabor, InducedPregnancyPremature Birthcesarean sectionCOVID-19induction of laborlockdownpreterm birth

Identifiers

PMID34255860
PMCPMC8444658

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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.