Evidence map›Paper›PMID 37231277›Full record

ArticleArchives of gynecology and obstetrics2024

Changes in the rate of preterm infants during the COVID-19 pandemic Lockdown Period-data from a large tertiary German University Center.

Maria Delius, Thomas Kolben, Claudia Nußbaum, Viktoria Bogner-Flatz, Antonia Delius, Laura Hahn, Johanna Buechel, Uwe Hasbargen, Andreas W Flemmer, Sven Mahner and 1 more

Abstract read
In one paragraph

Article in Archives of gynecology and obstetrics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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

  1. Pooled it
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  3. Collaborative Efforts in Pediatric Surgery: Lessons from European Randomized Controlled Trials.European journal of pediatric surgery : official journal of Austrian Association of Pediatric Surgery ... [et al] = Zeitschrift fur Kinderchirurgie · 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

11 authors.

Maria DeliusDepartment of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Ziemssenstraße 5, 80337, Munich, Germany.
Thomas KolbenDepartment of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Ziemssenstraße 5, 80337, Munich, Germany.
Claudia NußbaumDivision of Neonatology, Department of Pediatrics, Dr. Von Hauner Children's Hospital, LMU University Hospital, LMU Munich, Munich, Germany.
Viktoria Bogner-FlatzEmergency Medical Services Authority, Munich, Germany.
Antonia DeliusWorld Bank, Washington, DC, USA.
Laura HahnDepartment of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Ziemssenstraße 5, 80337, Munich, Germany.
Johanna BuechelDepartment of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Ziemssenstraße 5, 80337, Munich, Germany.
Uwe HasbargenDepartment of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Ziemssenstraße 5, 80337, Munich, Germany.
Andreas W FlemmerDivision of Neonatology, Department of Pediatrics, Dr. Von Hauner Children's Hospital, LMU University Hospital, LMU Munich, Munich, Germany.
Sven MahnerDepartment of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Ziemssenstraße 5, 80337, Munich, Germany.
Linda HertleinDepartment of Obstetrics and Gynecology, LMU University Hospital, LMU Munich, Ziemssenstraße 5, 80337, Munich, Germany. linda.hertlein@med.uni-muenchen.de.ORCID http://orcid.org/0000-0003-1077-4969

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAfter living with the COVID-19 pandemic for more than 2 years, the impact of lockdown measures on preterm birth rates is inconsistent according to data from different countries. In this study, rates of preterm-born infants during the time of COVID-19-related lockdowns were analyzed in a tertiary perinatal center at Munich University, Germany.

methodsWe analyzed the number of preterm births, infants, and stillbirths before 37 weeks of gestation during the German COVID-19 lockdown period compared to the same time periods in the years 2018 and 2019 combined. Additionally, we expanded the analysis to Pre- and Post-Lockdown Periods in 2020 compared to the respective control periods in the years 2018 and 2019.

resultsOur database shows a reduction in the rate of preterm infants during the COVID-19 lockdown period (18.6%) compared to the combined control periods in 2018 and 2019 (23.2%, p = 0.027). This was mainly based on a reduced rate of preterm multiples during the lockdown period (12.8% vs. 28.9%, p = 0.003) followed by a reversed effect showing a threefold rise in multiple births after the lockdown. In singletons, the rate of preterm births was not reduced during the lockdown. The rate of stillbirths was not affected by the lockdown measures as compared to the control period (0.9% vs. 0.7%, p = 0.750).

conclusionDuring the COVID-19 pandemic lockdown period, we found a reduced rate of preterm-born infants compared to a combined control period in the years 2018 and 2019 in our large tertiary University Center in Germany. Due to the predominant reduction in preterm multiples, we postulate that less physical activity might have led to the protective effect by lockdown measures.

Indexed as

COVID-19Premature BirthCommunicable Disease ControlFemaleHumansInfantInfant, NewbornInfant, PrematurePandemicsPregnancyStillbirthUniversitiesCOVID-19LockdownPreterm birthStillbirth

Identifiers

PMID37231277
PMCPMC10212226

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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.