Trial reportBioMed research international2014
Maternal body mass index and risk of obstetric anal sphincter injury.
Trial report in BioMed research international, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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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.
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.
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Who cites it
19 citing papers in PubMed.
- Elective Labor Induction at 39 Weeks of Gestation Compared With Expectant Management: Factors Associated With Adverse Outcomes in Low-Risk Nulliparous Women.Obstetrics and gynecology · 2020Trial
- Article
- Beyond the numbers: Impact of obesity on obstetric anal sphincter injury (OASI) outcomes in women.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025Article
- Understanding the Role of Obesity and Metabolism in Pelvic Floor Disorders.Urogynecology (Philadelphia, Pa.) · 2024Article
- Management of Third and Fourth-Degree Perineal Tears After Vaginal Birth. Guideline of the DGGG, OEGGG and SGGG (S2k-Level, AWMF Registry No. 015/079, December 2020).Geburtshilfe und Frauenheilkunde · 2023Article
- Influence of previous delivery mode on perineal trauma risk.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2022Article
- Body mass index and complications after obstetric anal sphincter injury, 8 weeks postpartum.International urogynecology journal · 2022Article
- Obstetric anal sphincter injuries-Maternal, fetal and sociodemographic risk factors: A retrospective register-based study.Acta obstetricia et gynecologica Scandinavica · 2022Observational
- Spontaneous Perineal Trauma during Non-Operative Childbirth-Retrospective Analysis of Perineal Laceration Risk Factors.International journal of environmental research and public health · 2022Article
- Assessing the Impact of Obesity on Pregnancy and Neonatal Outcomes among Saudi Women.Nursing reports (Pavia, Italy) · 2021Article
- Body mass index in early-pregnancy and selected maternal health outcomes: Findings from two cohorts in Bangladesh.Journal of global health · 2020Article
- Magnitude of Episiotomy and Associated Factors among Mothers Who Give Birth in Arba Minch General Hospital, Southern Ethiopia: Observation-Based Cross-Sectional Study.Journal of pregnancy · 2020Observational
- Associations Between Maternal Obesity and Race, with Obstetric Anal Sphincter Injury: A Retrospective Cohort Study.Hawai'i journal of medicine & public health : a journal of Asia Pacific Medicine & Public Health · 2019Article
- Risk and protective factors for obstetric anal sphincter injuries: A retrospective nationwide study.Birth (Berkeley, Calif.) · 2018Article
- Delivery outcomes in term births after bariatric surgery: Population-based matched cohort study.PLoS medicine · 2018Article
- Third and Fourth Degree Perineal Tear in Four-Year Period at Sestre Milosrdnice University Hospital Center, Zagreb, Croatia.Open access Macedonian journal of medical sciences · 2018Article
- Maternal Body Mass Index and Anovaginal Distance in Active Phase of Term Labor.BioMed research international · 2018Observational
- Duration of second stage of labor and instrumental delivery as risk factors for severe perineal lacerations: population-based study.BMC pregnancy and childbirth · 2017Article
- Management of 3rd and 4th Degree Perineal Tears after Vaginal Birth. German Guideline of the German Society of Gynecology and Obstetrics (AWMF Registry No. 015/079, October 2014).Geburtshilfe und Frauenheilkunde · 2015Article
Corrections and comments
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Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo estimate the association between maternal obesity and risk of three different degrees of severity of obstetric anal sphincter injury.
methodsThe study population consisted of 436,482 primiparous women with singleton term vaginal cephalic births between 1998 and 2011 identified in the Swedish Medical Birth Registry. Women were grouped into six categories of BMI. BMI 18.5-24.9 was set as reference. Primary outcome was third-degree perineal laceration, partial or total, and fourth-degree perineal laceration. Adjustments were made for year of delivery, maternal age, fetal head position at delivery, infant birth weight and instrumental delivery.
resultsThe overall prevalence of third- or four-degree anal sphincter injury was 6.6% (partial anal sphincter injury 4.6%, total anal sphincter injury 1.2%, unclassified as either partial and total 0.2%, or fourth degree lacerations 0.6%). The risk for a partial, total, or a fourth-degree anal sphincter injury decreased with increasing maternal BMI most pronounced for total anal sphincter injury where the risk among morbidly obese women was half that of normal weight women, OR 0.47 95% CI 0.28-0.78.
conclusionObese women had a favourable outcome compared to normal weight women concerning serious pelvic floor damages at birth.
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