Evidence map›Paper›PMID 39485526›Full record

ArticleInternational urogynecology journal2025

Predictors and Unexplained Variability of Obstetric Anal Sphincter Injuries: A Population-Based Cross-Sectional Analysis.

Christopher X Hong, Pamela S Fairchild, Payton C Schmidt, Jourdan E Triebwasser

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Article in International urogynecology journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

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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

1 citing paper in PubMed.

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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

4 authors.

Christopher X HongDepartment of Obstetrics and Gynecology, University of Michigan, University Hospital South, 1500 E. Medical Center Dr., L4011, Ann Arbor, MI, 48109, USA. cxhong@med.umich.edu.
Pamela S FairchildDepartment of Obstetrics and Gynecology, University of Michigan, University Hospital South, 1500 E. Medical Center Dr., L4011, Ann Arbor, MI, 48109, USA.
Payton C SchmidtDepartment of Obstetrics and Gynecology, University of Michigan, University Hospital South, 1500 E. Medical Center Dr., L4011, Ann Arbor, MI, 48109, USA.
Jourdan E TriebwasserDepartment of Obstetrics and Gynecology, University of Michigan, University Hospital South, 1500 E. Medical Center Dr., L4011, Ann Arbor, MI, 48109, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introduction and hypothesisThe objective was to determine the incidence of obstetric anal sphincter injuries (OASIs) and assess the predictive power of clinical risk factors for OASIs, both individually and collectively, using a US population-based birth registry.

methodsWe conducted a cross-sectional study using birth data from the National Vital Statistics System from 2016 to 2021. All vaginal births were included, excluding those with unspecified delivery route or perineal laceration status. Logistic regression models assessed the relationship between potential clinical predictors, determined a priori based on existing literature and inclusion in the registry data, and OASIs. The pseudo-R

resultsA total of 15,413,957 vaginal births were analyzed. The overall incidence of OASIs was 1.1%. The factors that exhibited the highest predictive capability for OASIs were vaginal parity (pR

conclusionVaginal parity and operative birth are among the most predictive clinical risk factors for OASIs, each accounting for approximately 5% of the variation in OASI outcomes. However, a significant portion of OASI occurrences remains unexplained by clinical risk factors alone. Future research focusing on the mechanisms of OASIs will be crucial for identifying high-risk patients and developing targeted interventions to reduce the risk of OASIs.

Indexed as

Anal CanalDelivery, ObstetricObstetric Labor ComplicationsRisk AssessmentAdultCross-Sectional StudiesFemaleFetal WeightHumansIncidenceLogistic ModelsOdds RatioParityPregnancyRegistriesRetrospective StudiesNational vital statisticsOASIsObstetric anal sphincter injuryOperative birthPerineal lacerationPopulation-based incidence

Identifiers

PMID39485526

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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.