Evidence map›Paper›PMID 38764909›Full record

ArticleHuman reproduction open2024

SARS-CoV-2 infection in IVF-conceived early pregnancy and the risk of miscarriage: a matched retrospective cohort study.

Jian Xu, Di Mao, Chunlin Liu, Ling Sun

Abstract read
In one paragraph

Article in Human reproduction open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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.

Jian XuDepartment of Obstetrics and Gynaecology, Center of Reproductive Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.ORCID https://orcid.org/0009-0009-9023-361X
Di MaoDepartment of Obstetrics and Gynaecology, Center of Reproductive Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.ORCID https://orcid.org/0000-0002-0215-5941
Chunlin LiuDepartment of Obstetrics and Gynaecology, Center of Reproductive Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
Ling SunDepartment of Obstetrics and Gynaecology, Center of Reproductive Medicine, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.ORCID https://orcid.org/0000-0002-4267-8210

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

study questionIs SARS-CoV-2 infection in IVF-conceived early pregnancy associated with a higher risk of miscarriage? SUMMARY ANSWER: Infection with SARS-CoV-2 during early pregnancy in women conceiving by IVF may not be associated with an increased rate of miscarriage. WHAT IS KNOWN ALREADY: In naturally conceived pregnancies, most findings have shown that SARS-CoV-2 infection does not increase the risk of miscarriage, while some studies have shown that SARS-CoV-2 infection is associated with a higher risk of miscarriage. STUDY DESIGN SIZE DURATION: A matched retrospective cohort study was conducted in a tertiary hospital-based reproductive medicine center. The infection group included women who contracted coronavirus disease 2019 (COVID-19) before 20 weeks gestation from 6 December 2022 to 10 January 2023. Each infected woman was matched with three historical control subjects from 1 January 2018 to 31 May 2022. PARTICIPANTS/MATERIALS SETTING

methodsThe infection group was matched with historical control subjects based on female age (±1 year), number of gestational sacs, number of previous miscarriages, BMI (±2 kg/cm MAIN RESULTS AND THE ROLE OF CHANCE: A total of 150 pregnant women infected with COVID-19 before 20 weeks of gestation were included in the infection group, which was matched at a 3:1 ratio with 450 historically pregnant controls. There were no significant differences in age, BMI, and endometrial thickness between the two groups. The overall incidence of miscarriage was not significantly different between the infection group and the control group (4.7% versus 5.8%, LIMITATIONS REASONS FOR CAUTION: The major limitation of this study is the relatively small sample size; therefore, caution is suggested when drawing any definitive conclusions. Nonetheless, our study is the largest sample study of the influence of COVID-19 infection on the miscarriage rate in early pregnancy after IVF. WIDER IMPLICATIONS OF THE

findingsOur findings may provide important insights for reproductive physicians and obstetricians during preconception and early pregnancy counseling. STUDY FUNDING/COMPETING INTERESTS: This study was supported by the Natural Science Foundation of Guangdong Province (No. 2023A1515010250). The authors report no conflicts of interest. TRIAL REGISTRATION NUMBER: N/A.

Indexed as

early pregnancyinfectionIVFmiscarriageSARS-CoV-2

Identifiers

PMID38764909
PMCPMC11099652

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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.