Maternal Body Mass Index and Risk of Obstetric Anal Sphincter Injury

  title={Maternal Body Mass Index and Risk of Obstetric Anal Sphincter Injury},
  author={Marie Blomberg},
  booktitle={BioMed research international},
OBJECTIVE To estimate the association between maternal obesity and risk of three different degrees of severity of obstetric anal sphincter injury. METHODS The 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… CONTINUE READING
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