Evidence map›Paper›PMID 27981741›Full record

SynthesisBJOG : an international journal of obstetrics and gynaecology2017

Lesbian and bisexual women's likelihood of becoming pregnant: a systematic review and meta-analysis.

K Hodson, C Meads, S Bewley

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BJOG : an international journal of obstetrics and gynaecology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 5 pooled it
5.6field-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

28 citing papers in PubMed, 5 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. A Systematic Review of Sexual Minority Women's Experiences of Health Care in the UK.International journal of environmental research and public health · 2019
    Pooled it
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  4. Lesbian and bisexual women's likelihood of becoming pregnant: a systematic review and meta-analysis.BJOG : an international journal of obstetrics and gynaecology · 2017
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  17. LGBTQ+ individuals and pregnancy outcomes: A commentary.BJOG : an international journal of obstetrics and gynaecology · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 1 country.

K HodsonQueen's Hospital, Romford, Essex, UK.
C MeadsDepartment of Health, Social Care and Education, Anglia Ruskin University, Cambridge, UK.
S BewleyDivision of Women's Health, Women's Health Academic Centre, King's College London and King's Health Partners, St Thomas' Hospital Campus, London, UK.
Anglia Ruskin University · GBKings Health Partners · GBQueen's Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFew data exist regarding pregnancy in lesbian and bisexual (LB) women.

objectivesTo determine the likelihood of LB women becoming pregnant, naturally or assisted, in comparison with heterosexual women SEARCH STRATEGY: Systematic review of papers published 1 January 2000 to 23 June 2015. SELECTION CRITERIA: Studies contained details of pregnancy rates among LB women compared with heterosexual women. No restriction on study design. DATA COLLECTION AND ANALYSIS: Inclusion decisions, data extraction and quality assessment were conducted in duplicate. Meta-analyses were carried out, with subgroups as appropriate. MAIN

resultsOf 6859 papers identified, 104 full-text articles were requested, 30 papers (28 studies) were included. The odds ratio (OR) of ever being pregnant was 0.19 (95% CI 0.18-0.21) in lesbian women and 1.22 (95% CI 1.15-1.29) in bisexual women compared with heterosexual women. In the general population, the odds ratio for pregnancy was nine-fold lower among lesbian women and over two-fold lower among bisexual women (0.12 [95% CI 0.12-0.13] and 0.50 [95% CI 0.45-0.55], respectively). Odds ratios for pregnancy were higher for both LB adolescents (1.37 [95% CI 1.18-1.59] and 1.98 [95% CI 1.85, 2.13], respectively). There were inconsistent results regarding abortion rates. Lower rates of previous pregnancies were found in lesbian women undergoing artificial insemination (OR 0.17 [95% CI 0.11-0.26]) but there were higher assisted reproduction success rates compared with heterosexual women (OR 1.56 [95% CI 1.24-1.96]).

conclusionsHeterosexuality must not be assumed in adolescents, as LB adolescents are at greater risk of unwanted pregnancies and terminations. Clinicians should provide appropriate information to all women, without assumptions about LB patients' desire for, or rejection of, fertility and childbearing. TWEETABLE ABSTRACT: Review of likelihood of LB women becoming pregnant: LB teenagers at greater risk of unwanted pregnancies.

Indexed as

Pregnancy RateFemaleHomosexuality, FemaleHumansPregnancyProbabilitySexual and Gender MinoritiesSexualityArtificial inseminationbisexuallesbianpregnancysystematic review

Identifiers

PMID27981741
PMCPMC5299536
OpenAlexW2562490351

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.