Risk factors for obstetric anal sphincter injury among parous women.
Gabriel LevinAmihai RottenstreichAbraham TsurTal CahanRakefet Yoeli-UllmanDaniel ShaiRaanan MeyerPublished in: Archives of gynecology and obstetrics (2020)
Among parous women, the only factors found to be independently positively associated with OASI were the order of parity and neonatal birth-weight. Vacuum-assisted delivery was not associated with an increased risk of OASI among parous women.