PREPREGNANCY WEIGHT STATUS, PRENATAL WEIGHT-GAIN, AND THE OUTCOME OF TERM TWIN GESTATIONS
PREPREGNANCY WEIGHT STATUS, PRENATAL WEIGHT-GAIN, AND THE OUTCOME OF TERM TWIN GESTATIONS
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DOI：
10.1016/0002-9378(90)90845-x
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发表时间：
1990-01-01
影响因子：
9.8
通讯作者：
SCHLOESSER, PT
中科院分区：
文献类型：
--
作者：
BROWN, JE;SCHLOESSER, PT
使用堪萨斯州1980-1986年出生死亡证明提供的数据，对922例足月分娩的双胎妊娠的孕前体重状况、产前体重增加和结局之间的关系进行了回顾性调查。研究发现，体重不足和体重正常的怀孕女性的婴儿出生体重随着产前体重的增加而线性增加，但对于怀孕初期超重或肥胖的女性则不是这样。肥胖女性的双胞胎妊娠率是体重过轻女性的两倍。低出生体重儿的比例随着孕前体重状况的增加而下降。出生体重在围产期最低死亡率(3001到3500克)范围内的足月双胞胎出生体重过低的孕妇的平均产前体重增加为44.2±-。12.4磅。对于体重正常的女性，相应的数字为40.9。+-。11.3磅。这些平均收益显著高于体重不足和体重正常的足月分娩较小婴儿的孕妇的收益。
Relationships among prepregnancy weight status, prenatal weight gain, and the outcome of 922 twin gestations delivered at term were retrospectively investigated with the use of data provided by linked birth-death certificates in Kansas, 1980 to 1986. Infant birth weights were found to increase linearly with prenatal weight gain for women who entered pregnancy underweight and at normal weight, but not for women who were overweight or obese at the start of pregnancy. The rate of twin gestation was twice as high in obese women as that in underweight women. The proportion of infants born with low birth weight declined as prepregnancy weight status increased. The mean prenatal weight gain of underweight women who were delivered of term twin infants with birth weights in the range of lowest perinatal mortality (3001 to 3500 gm) was 44.2 .+-. 12.4 pounds. For normal-weight women, the corresponding figure was 40.9 .+-. 11.3 pounds. These mean gains were significantly higher than the gains of underweight and normal-weight women who were delivered of smaller infants at term.