作者分析了547例巨大儿,全部嬰儿其体重均超过9磅。发生率占所有足月分娩嬰儿之3.4％,体重超过10磅嬰儿之发生率为0.61％。这些产妇中有87％为經产妇,其中20％为多胎經产妇(已往有5次或更多的活嬰),而对照全部分娩病例則分別为75％及6—7％。多胎經产妇經常娩出巨大儿。根据月經史测得的妊娠时限,决定过熟原因在巨大儿发生中的地位并不可靠。 The authors analyzed 547 huge children, all weighing more than 9 pounds. The incidence was 3.4% of all term infants and the incidence of infants weighing over 10 pounds was 0.61%. Eighty-seven per cent of these mothers were maternal mothers, of whom 20 per cent were males with multiple births (5 or more previous ex-gratia have been used) compared with 75 per cent and 6-7 per cent of all births in the control group. Multiple births often give birth to huge children. According to menstrual history menstrual time, decided to over-ripe reason in the occurrence of giant children is not reliable.