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Infibulated women have an increased risk of anal sphincter tears at delivery: a population-based Swedish register study of 250 000 births
Kristianstad University, School of Health and Society, Avdelningen för Hälsovetenskap. Kristianstad University, Forskningsmiljön PRO-CARE. Kristianstad University, Forskningsmiljön Mat, måltid, hälsa i 24-timmarsperspektivet.
Department of Public Health Sciences, Division of Global Health (IHCAR), Karolinska Institute.
Department of Public Health Sciences, Division of Global Health (IHCAR), Karolinska Institute.
Department of Public Health Sciences, Division of Global Health (IHCAR), Karolinska Institute.
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2013 (English)In: Acta Obstetricia et Gynecologica Scandinavica, ISSN 0001-6349, E-ISSN 1600-0412, Vol. 92, no 1, 101-108 p.Article in journal (Refereed) Published
Abstract [en]

Objective. To investigate the risk for anal sphincter tears (AST) in infibulated women. Design. Population-based cohort study. Setting. Nationwide study in Sweden. Population. The study population included 250 491 primiparous women with a vaginal singleton birth at 37–41 completed gestational weeks during 1999–2008. We only included women born in Sweden and in Africa. The African women were categorized into three groups; a Somalian-group, n = 929, where over 95% are infibulated; the Eritrea-Ethiopia-Sudan-group, n = 955, where the majority is infibulated, compared to other African countries, n = 1035, where few individuals are infibulated, but had otherwise similar anthropometric characteristics. These women were compared to 247 572 Swedish-born women. Methods. Register study with data from the National Medical Birth Registry. Main outcome measures. AST in non-instrumental and instrumental vaginal delivery. Results. Compared to Swedish-born women, women from Somalia had the highest odds ratio for AST in all vaginal deliveries: 2.72 (95% CI 2.08–3.54), followed by women from Eritrea-Ethiophia-Sudan 1.80 (1.41–2.32) and other African countries 1.23 (0.89–1.53) after adjustment for major risk factors. Mediolateral episiotomy was associated with a reduced risk of AST in instrumental deliveries. Conclusion. Delivering African women from countries where infibulation is common have an increased risk of AST compared with Swedish-born women, despite delivering in a highly technical quality healthcare setting. AST can cause anal incontinence and it is important to investigate risk factors for this and try to improve clinical routines during delivery to reduce the incidence of this complication.

Place, publisher, year, edition, pages
2013. Vol. 92, no 1, 101-108 p.
Keyword [en]
Female genital mutilation, anal sphincter tears, instrumental delivery, episiotomy, register, perineum
National Category
Obstetrics, Gynecology and Reproductive Medicine
Identifiers
URN: urn:nbn:se:hkr:diva-9768DOI: 10.1111/aogs.12010ISI: 000313714500014PubMedID: 22994630OAI: oai:DiVA.org:hkr-9768DiVA: diva2:558508
Available from: 2012-10-03 Created: 2012-10-03 Last updated: 2013-05-07Bibliographically approved

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Berggren, Vanja
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Avdelningen för HälsovetenskapForskningsmiljön PRO-CAREForskningsmiljön Mat, måltid, hälsa i 24-timmarsperspektivet
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