Evidence map›Paper›PMID 35233608›Full record

ArticleThe Journal of antimicrobial chemotherapy2022

Antibiotic use during pregnancy and the risk of preterm birth: a population-based Swedish cohort study.

M H Nguyen, R Fornes, N Kamau, H Danielsson, S Callens, E Fransson, L Engstrand, R Bruyndonckx, N Brusselaers

Open access · greenAbstract read
In one paragraph

Article in The Journal of antimicrobial chemotherapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 5% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  5. Treatment strategies for intra-amniotic infection and/or inflammation in preterm labor cases.European journal of obstetrics & gynecology and reproductive biology: X · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

M H NguyenI-BioStat, Data Science Institute, Hasselt University, Hasselt, Belgium.
R FornesCentre for Translational Microbiome Research, Department of Microbiology Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
N KamauI-BioStat, Data Science Institute, Hasselt University, Hasselt, Belgium.
H DanielssonCentre for Translational Microbiome Research, Department of Microbiology Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
S CallensDepartment of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium.
E FranssonCentre for Translational Microbiome Research, Department of Microbiology Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
L EngstrandCentre for Translational Microbiome Research, Department of Microbiology Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
R BruyndonckxI-BioStat, Data Science Institute, Hasselt University, Hasselt, Belgium.
N BrusselaersCentre for Translational Microbiome Research, Department of Microbiology Tumour and Cell Biology, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0003-0137-447X
Science for Life Laboratory · SEUniversity of Antwerp · BEGhent University Hospital · BE

Funding

Research Foundation-Flanders 12I6319N
6 · The paper itself

Abstract

objectivesTo assess the impact of gestational antibiotics on the risk of preterm birth, since a healthy maternal microbiome may be protective.

methodsPopulation-based cohort study including all first pregnancies in Sweden (2006-16). The association between gestational and recent pre-conception systemic antibiotics and preterm birth was assessed by multivariable logistic regression presented as ORs and 95% CIs, adjusted for comorbidities (hypo- and hyperthyroidism, hypertension, or diabetes mellitus pre-gestation), trimester, antibiotic class and treatment duration.

resultsCompared with non-users, antibiotic exposure was associated with increased risks of preterm birth in mothers with comorbidities (OR = 1.32, 95% CI 1.18-1.48) and without (OR = 1.09, 95% CI 1.06-1.13). Pre-conception use showed no association, while risk was increased for first and second trimester use and decreased for third trimester use. The increased risks were seen for the following antibiotic groups in mothers without and with comorbidities, respectively: macrolides, lincosamides and streptogramins (OR = 1.63, 95% CI 1.45-1.83; OR = 2.48, 95% CI 1.72-3.56); quinolones (OR = 1.60, 95% CI 1.32-1.94; OR = 2.11, 95% CI 1.12-4.03); non-penicillin β-lactams (OR = 1.15, 95% CI 1.07-1.24; OR = 1.39, 95% CI 1.07-1.83); other antibacterials (OR = 1.09, 95% CI 1.03-1.14; 1.38, 95% CI 1.16-1.63); and penicillins (OR = 1.04, 95% CI 1.01-1.08; 1.23, 95% CI 1.09-1.40). Antibiotic indications were not available, which could also affect preterm birth.

conclusionsAntibiotic use during pregnancy was associated with an increased risk of preterm birth, especially in mothers with chronic diseases.

Indexed as

Premature BirthAnti-Bacterial AgentsCohort StudiesFemaleHumansInfant, NewbornPregnancyPregnancy Trimester, SecondSwedenAnti-Bacterial Agents

Identifiers

PMID35233608
PMCPMC9047673
OpenAlexW4213017897

What OpenQuestion holds

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LicenceCC BY-NC
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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.