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本文1958年选择了“英国围产死亡调查”的16994例单产分娩病例中,孕期37周或以上出生体重不足2500克,无严重先天性缺陷和死产者468例(占出生总数的2.75％),并与同期16994例病例在以下几个方面进行比较分析有关因素如下: 一、围产期死亡:共22例(4.7％),仅为足月前分娩低出生体重儿死亡率的1/6。产妇年龄和产次:初产妇的足月低出生体重儿发生率(以下简称发生率)显著高于经产妇(前者为33.6‰,后者为21.9～27.8‰),这可解释不足
This article in 1958 selected the “British perinatal death survey,” 16994 cases of childbirth, 37 weeks of gestation or more birth weight less than 2500 grams, no serious congenital defects and 468 still-born (2.75% of the total number of births) , And compared with the 16994 cases in the same period in the following aspects: a) Perinatal deaths: A total of 22 cases (4.7%) were only 1/6 of the mortality rate of low birth weight babies before term labor . Maternal age and parity: The incidence of term low birth weight infants in primipara (hereinafter referred to as the incidence) was significantly higher than that of the maternal (the former was 33.6 ‰ and the latter 21.9-27.8 ‰), which could explain the lack of