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KMID : 0892719980020020171
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Journal of the Korean Society of Maternal and Child Health
1998 Volume.2 No. 2 p.171 ~ p.180
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Gestational Weight Gain and Perinatal Outcomes by Maternal Body Mass Index
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Koh Kyung-Sim
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Abstract
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Objective : To examine the influences of pre-pregnancy material body mass index on gestational weight gain and perinatal outcomes.
Methods : We used data collected from 307 pregnant women who delivered fullterm singleton infants without complications in Dankook Uuniversity Hospital form November 1995 to December 1996.
Results : The mean gestational weight gain was 12.7kg. The mean gestational weight gain in the underweight group(pre-pregnancy BMI<19.8kg/m2), in the normal weight group(BMI 19.8∼26.0kg/m2) and in the overweight
group(BMI>26.0kg/m2) was 13.2kg, 12.5kg, and 11.3kg, respectively. The
mean gestational weight gain during the first trimester in the underweight group, in the
normal weight group and in the overweight group was 3.2kg, 1.8kg, and 2.6kg,
respectively. The rate of gestational weight gain during the second and third trimester
was 0.47kg/wk in the underweight group, 0.46kg/wk in the normal weight group and
0.36kg/wk in the overweight group. SGA infants delivered from the underweight group
was more than SGA infants from the normal weight group and LGA infants delivered
from the underweight group was less than LGA infants from the normal weight group.
Pregnancy outcomes, such as infant birth weight, postpartum anemia, frequency of
cesarean section, Apgar score at 1 min. and 5 min., meconium staining and resuscitation
at delivery, showed no significant differences between three groups.
Conclusions : The results suggest that pre-pregnancy BMI influences the total amount and the rate of gestational weight gain. The less pre-pregnancy BMI women have, the more gestational weight gain women undergo, and vise versa. We must focus to check the gestational weight gain according to BMI to ensure the adeguate infant birth weight for prenatal care.
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KEYWORD
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body mass index, gestational weight gain, birth weight
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