Evidence map›Paper›PMID 33619016›Full record

ArticleBJGP open2021

Valproate use in women aged 15-44 years: an observational study in general practice.

Samantha J Beardsley, Isabel Dostal, James Cole, Ana Gutierrez, John Robson

Open access · goldAbstract read
In one paragraph

Article in BJGP open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

7 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. The valproate prescription pattern for female mental healthcare users of reproductive age.The South African journal of psychiatry : SAJP : the journal of the Society of Psychiatrists of South Africa · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. 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

5 authors at 1 institution in 1 country.

Samantha J BeardsleyBarts Health NHS Trust, The Royal London Hospital, London, UK sam.beardsley1@nhs.net.
Isabel DostalInstitute of Population Health Sciences, Queen Mary University of London, London, UK.
James ColeInstitute of Population Health Sciences, Queen Mary University of London, London, UK.
Ana GutierrezInstitute of Population Health Sciences, Queen Mary University of London, London, UK.
John RobsonInstitute of Population Health Sciences, Queen Mary University of London, London, UK.
Queen Mary University of London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundValproate is a known teratogen. In April 2018, the Medicines and Healthcare products Regulatory Agency (MHRA) restricted its use in women and banned use in pregnancy, except for epilepsy with no other effective treatment. To date, there is limited information on valproate prescribing within primary care.

aimTo characterise valproate prescribing to women of childbearing age, recorded advice or GP prescribed contraception, and recorded pregnancies. DESIGN &

settingA cross-sectional study of patients from all 141 general practices across three clinical commissioning groups (CCGs) in East London.

methodWomen aged 15-44 years prescribed valproate between 1 October 2017 and 1 January 2020 were included. Exclusion criteria were early menopause, sterilisation procedures, or hysterectomy. Pseudonymised data on valproate indication, pregnancy, pre-conception, and contraception advice were retrospectively extracted from general practice consultation data. Data were analysed by quarter using univariate statistics.

resultsOf the total 1 042 463 registered patients, 344 women aged 15-44 years were prescribed valproate during the study period; 14 were excluded. There were 10 pregnancies during possible valproate exposure; one was terminated. During the study period, the number of women prescribed valproate significantly decreased (

conclusionWith continued pregnancies in women aged 15-44 years prescribed valproate, patient education and foetal outcomes remain ongoing concerns. Further improvements are needed to ensure women make informed reproductive choices and safeguard future pregnancies from valproate exposure.

Indexed as

adverse drug related eventpregnancyprimary health carevalproatewomen

Identifiers

PMID33619016
PMCPMC8170604
OpenAlexW3131674151

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.