Evidence map›Paper›PMID 26676912›Full record

SynthesisInternational urogynecology journal2016

Risk factors for recurrent obstetric anal sphincter injury (rOASI): a systematic review and meta-analysis.

Swati Jha, Victoria Parker

Open access · hybridAbstract readMeta-AnalysisSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in International urogynecology journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 4 pooled it
3.2field-weighted citation impact, top 9% 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

36 citing papers in PubMed, 4 syntheses or guidelines pooled it, 100 citations in OpenAlex.

  1. Pooled it
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  3. Risk factors for obstetric anal sphincter injury recurrence: A systematic review and meta-analysis.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2022
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  13. Does infection with COVID-2019 during labor increase the risk for obstetric anal sphincter injuries?International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
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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

2 authors at 1 institution in 1 country.

Swati JhaDepartment of Urogynaecology, Sheffield Teaching Hospitals, Level 4 Jessop Wing, Tree Root Walk, Sheffield, S10 2SF, UK. Swati.Jha@sth.nhs.uk.
Victoria ParkerDepartment of Urogynaecology, Sheffield Teaching Hospitals, Level 4 Jessop Wing, Tree Root Walk, Sheffield, S10 2SF, UK.
Jessop Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe objective of this study was to estimate the risk of recurrent obstetric anal sphincter injury (rOASI) in women who have suffered anal sphincter injury in their previous pregnancy and analyse risk factors for recurrence through a systematic review and meta-analysis. DATA SOURCES: A review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Searches were made in Ovid MEDLINE (1996 to May 2015), PubMed, EMBASE and Google Scholar, including bibliographies and conference proceedings. METHODS OF STUDY SELECTION: Observational studies (cohort/case-control) evaluating rOASI and risk factors were selected by two reviewers who also analysed methodological quality of those studies. Pooled odds ratios (OR) for rOASI and individual risk factors were calculated using RevMan 5.3. TABULATION, INTEGRATION AND

resultsFrom the eight studies assessed, overall risk of rOASI was 6.3 % compared with a 5.7 % risk of OASI in the first pregnancy. The risk in parous women with no previous OASI was 1.5 %. Factors that increased the risk in a future pregnancy were instrumental delivery with forceps [OR 3.12, 95 % confidence interval (CI) 2.42-4.01) or ventouse (OR 2.44, 95 % CI 1.83-3.25), previous fourth-degree tear (OR 1.7, 95 % CI 1.24-2.36) and birth weight ≥4 kg (OR 2.29, 95 % CI 2.06-2.54). Maternal age ≥35 years marginally increased the risk (OR 1.16, 95 % CI 1-1.35).

conclusionThe overall rate of rOASI and associated risk factors for recurrence are similar to the rate and risk factors of primary OASI. Antenatal decisions could be based on assessment of foetal weight and intrapartum decisions based upon the requirement for an instrumental delivery.

Indexed as

Anal CanalAnus DiseasesDelivery, ObstetricFemaleHumansPregnancyRecurrenceRisk FactorsAnal sphincter injuryOASIRecurrenceSubsequent deliveryThird/fourth-degree tear

Identifiers

PMID26676912
PMCPMC4879153
OpenAlexW2212299221

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.