Dept of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.
IRCCS Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.
Biomed Res Int. 2019 Sep 16;2019:9581439. doi: 10.1155/2019/9581439. eCollection 2019.
Aim of this study is to analyze determinants of breech presentation using information from two regional databases of Lombardy (Italy) including data on consecutive singleton breech and vertex deliveries occurred in the Region, between January 2010 and December 2015. Breech presentation occurred in 3.8% of all single deliveries. Main determinants of breech presentation at birth were: gestational age and birth weight (the lower, the higher the incidence of breech presentation), maternal age (the older the mother, the higher the risk of breech presentation), parity (the frequency of breech decreased with increasing parity) and previous cesarean section. Breech presentation resulted more frequent after assisted reproduction procedures.
本研究旨在利用来自意大利伦巴第地区的两个区域数据库的信息来分析臀位分娩的决定因素,包括 2010 年 1 月至 2015 年 12 月期间该地区连续的单胎臀位和头位分娩的数据。臀位分娩占所有单胎分娩的 3.8%。臀位分娩的主要决定因素为:胎龄和出生体重(胎龄越小,出生体重越低,臀位分娩的发生率越高)、产妇年龄(母亲年龄越大,臀位分娩的风险越高)、产次(臀位分娩的频率随产次增加而降低)和既往剖宫产。辅助生殖后臀位分娩更为常见。