Evidence map›Paper›PMID 33407239›Full record

ArticleBMC pregnancy and childbirth2021

Increased risk of preeclampsia after use of paracetamol during pregnancy - causal or coincidence?

Hetti von Hellens, Leea Keski-Nisula, Heidi Sahlman

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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

3 authors at 1 institution in 1 country.

Hetti von HellensInstitute of Clinical Medicine, School of Medicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland.
Leea Keski-NisulaInstitute of Clinical Medicine, School of Medicine, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland.
Heidi SahlmanSchool of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI-70211, Kuopio, Finland. heidi.sahlman@uef.fi.ORCID http://orcid.org/0000-0003-1737-6066
University of Eastern Finland · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe maternal use of paracetamol during pregnancy has been associated with the development of preeclampsia. This study aims to clarify whether the connection is causal or whether it is due to reverse causation.

methodsThis study is a continuation of the retrospective case cohort study examining 2,508 pregnant women using a variety of drugs and the development of preeclampsia (1,252 women with preeclampsia and 1,256 controls). For the purposes of this study, more precise data was collected from several hospital databases of the women among this cohort who had reported taking paracetamol during pregnancy (indications, gestational period etc.); this was evaluated in association with the development of preeclampsia.

results5.5% (100 cases and 37 controls) of all the study population (2,508) had clearly reported paracetamol use. Women with preeclampsia had used significantly more often paracetamol during pregnancy compared to controls (cases 8.0%, controls 2.9%, p < 0.001). The difference was most evident in the third trimester (after the 29th GW) and the use of paracetamol was associated with both mild and severe preeclampsia. Headache and "general pain" were the most common indications for medication among all paracetamol users.

conclusionsThe use of paracetamol in the third trimester of pregnancy was associated with preeclampsia. This observation indicates that association between paracetamol use and preeclampsia is probably due to reverse causation, i.e. women with preeclampsia experience more headaches due to preeclampsia symptoms since this association was not detected with the use of paracetamol in earlier stages of pregnancy.

Indexed as

AcetaminophenAnalgesics, Non-NarcoticCausalityCohort StudiesFemaleGestational AgeHeadacheHumansPainPre-EclampsiaPregnancyPregnancy Trimester, ThirdRetrospective StudiesRisk FactorsAcetaminophenAnalgesics, Non-NarcoticAcetaminophenParacetamolPreeclampsiaPregnancy

Identifiers

PMID33407239
PMCPMC7789579
OpenAlexW3120291724

What OpenQuestion holds

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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.