López-Escobar G, Riaño-Gamboa G, Fortney J, Janowitz B
Int J Gynaecol Obstet. 1979 Nov-Dec;17(3):284-9. doi: 10.1002/j.1879-3479.1979.tb00169.x.
All the breech presentations that occurred in a large sample of data on obstetric deliveries from a random sample of urban hospitals in Colombia are examined. The 463 breeches are analyzed by age and parity of the mother, type of breech presentation (frank or footling) and type of delivery (vaginal or abdominal). The data suggest that abdominal delivery reduces perinatal mortality although cell values are too small to adequately control for birth weight.
对来自哥伦比亚城市医院随机样本的大量产科分娩数据中出现的所有臀位分娩情况进行了检查。对463例臀位分娩按母亲的年龄和产次、臀位类型(单臀或足先露)以及分娩方式(阴道分娩或剖宫产)进行了分析。数据表明剖宫产可降低围产期死亡率,尽管单元格数值过小,无法充分控制出生体重。