Evidence map›Paper›PMID 35620863›Full record

ArticleBJOG : an international journal of obstetrics and gynaecology2022

Idiopathic intracranial hypertension: Evaluation of births and fertility through the Hospital Episode Statistics dataset.

Mark Thaller, Jemma Mytton, Benjamin R Wakerley, Susan P Mollan, Alexandra J Sinclair

Open access · hybridAbstract read
In one paragraph

Article in BJOG : an international journal of obstetrics and gynaecology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
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  3. Idiopathic Intracranial Hypertension Is Associated With an Increased Risk of Hypertensive Pregnancy Disorders.Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society · 2025
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  20. The UK CSF Disorders Day 2022.Neuro-ophthalmology (Aeolus Press) · 2023
    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.

Mark ThallerMetabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.ORCID 0000-0001-7772-2157
Jemma MyttonInformatics, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
Benjamin R WakerleyMetabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.ORCID 0000-0003-1016-5207
Susan P MollanBirmingham Neuro-Ophthalmology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.ORCID 0000-0002-6314-4437
Alexandra J SinclairMetabolic Neurology, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.ORCID 0000-0003-2777-5132
University Hospitals Birmingham NHS Foundation Trust · GB

Funding

Sir Jules Thorn Charitable Trust n/a
6 · The paper itself

Abstract

objectiveIdiopathic intracranial hypertension (IIH) predominantly affects women of reproductive age with obesity, and these women have a distinct profile of hyperandrogenism and insulin resistance. Polycystic ovary syndrome (PCOS) has an established adverse fertility phenotype that typically affects obese women. As IIH may impact reproductive health, we sought to evaluate fertility, gestational complications and pregnancy outcome in IIH.

designProspective cohort study from English Hospital Episode Statistics dataset.

settingEnglish hospitals, UK. POPULATION: Women aged 18-45 years seen in English hospitals between 1 April 2002 and 31 March 2019. Patients were required to have an IIH diagnosis and were compared with those with PCOS and general population female controls.

main outcome measuresPregnancies resulting in live births, complications of gestational diabetes and pre-eclampsia, and method of delivery.

resultsData was collected from 17 587 IIH, 199633 PCOS and 10 947 012 women in the general population. The live birth rate, adjusted for age, was significantly lower among women with IIH (54.1%) than PCOS (67.9%), p < 0.0001 and the general population (57.7%), p < 0.0001. Pre-eclampsia and gestational diabetes risks were higher following a diagnosis of IIH (5.3-fold and 2.7-fold, respectively, p < 0.0001) compared with the general population controls. Following a diagnosis of IIH, elective caesarean section rates were more than twice that of general population (odds ratio [OR] 2.4) and prior to a diagnosis of IIH (OR 2.2).

conclusionsThese data indicate there are lower age-adjusted total pregnancy rates, increased risk of pre-eclampsia and gestational diabetes, and a doubling of elective caesarean section rates in those with a diagnosis of IIH.

Indexed as

Diabetes, GestationalPolycystic Ovary SyndromePre-EclampsiaPseudotumor CerebriCesarean SectionFemaleFertilityHospitalsHumansObesityPregnancyPregnancy OutcomeProspective Studiesbirthcaesarean sectionepidemiologyfertilityHospital Episode Statisticsidiopathic intracranial hypertensionpapilloedemapolycystic ovarian syndromepregnancypseudotumor cerebri

Identifiers

PMID35620863
PMCPMC9796176
OpenAlexW4281626577

What Socratic holds

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LicenceCC BY
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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 Socratic graph.