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The aim of this study was to evaluate the hypothesis that urinary incontinence (UI) and anal incontinence (AI) are more common in overweight and obese women than in normal-weight women 8 weeks postpartum in women with OASI.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>A population-based cohort study including 6,595 primiparous women, with an OASI, delivered between 2014 and 2019. Exposure and questionnaire data were retrieved from the Swedish Perineal Laceration Registry.<\/jats:p>\n                <jats:p>Uni- and multivariate analyses were used to compare normal-weight (BMI \u226424.9, reference), overweight (25.0\u201329.9), and obese (\u2265 30) women with regard to UI and AI at 8 weeks post-partum.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Multivariate analyses showed an increased risk for urinary incontinence (OR 1.54, 95% CI 1.27\u20131.87) among overweight women as well as among obese women (OR 1.72, 95% CI 1.32\u20132.24). In contrast to our hypothesis, both overweight women (OR 0.68, 95% CI 0.56\u20130.83) and obese women (OR 0.65, 95% CI 0.49\u20130.87) were at a decreased risk for any gas and\/or faecal incontinence after adjustment to possible confounding factors.<\/jats:p>\n                <jats:p>The absolute rate of AI was 40.1% among normal-weight women, 34.2% among overweight women, and 29.1% in the obese group.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>Urinary incontinence is more common,\u00a0whereas AI is less common among overweight and obese women than in primiparous women with a BMI &lt;24.9, 8 weeks after an OASI. The new finding, that overweight women report less AI than normal-weight women, merits further study.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00192-022-05328-w","type":"journal-article","created":{"date-parts":[[2022,9,9]],"date-time":"2022-09-09T18:21:53Z","timestamp":1662747713000},"page":"3465-3472","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Body mass index and complications after obstetric anal sphincter injury, 8 weeks postpartum"],"prefix":"10.1007","volume":"33","author":[{"given":"Linda","family":"Hjertberg","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sofia","family":"Pihl","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marie","family":"Blomberg","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3299-8437","authenticated-orcid":false,"given":"Eva","family":"Uustal","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,9,9]]},"reference":[{"issue":"1","key":"5328_CR1","doi-asserted-by":"publisher","first-page":"10","DOI":"10.1002\/nau.23055","volume":"36","author":"AH Sultan","year":"2017","unstructured":"Sultan AH, Monga A, Lee J, Emmanuel A, Norton C, Santoro G, et al. 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