Wei sheng yan jiu = Journal of hygiene research · 2019
[Association between the rates of maternal weight gain in different pregnancy periods and the pregnancy outcomes of 421 pregnant women in Shenzhen City, 2013].
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Li Yanhui, Luo Huiping, Li Yijing, Mao Limei
Аннотация
OBJECTIVE: To analyze the rates of weight gain during different trimesters of pregnancy and their associations with pregnancy outcomes in Shenzhen pregnant women.
METHODS: Healthy singleton pregnant women aged from 20 to 35, within 12 weeks of gestation, in the Shenzhen Maternal and Child Health Hospital for routine medical checkups were recruited. Information about their dietary intake and lifestyle behavior during pregnancy, pregnancy outcomes and neonatal birth outcomes were followed up prospectively, meanwhile maternal weight at per trimester and newborn birth physique were measured, and 421 valid cases were analyzed.
RESULTS: Significantly lower rate of weight gain in the 1 st trimester((0.05±0.15)kg/w) were observed than that in the 2 nd trimester((0.56±0.17)kg/w) and the 3 rd trimester((0.54±0.22)kg/w)(P<0.01). No significant difference was found for that between the 2 nd and 3 rd trimester(P>0.05). The multiple linear regression analysis showed positive correlations between maternal weight gain rate in the 2 nd trimester and the neonatal birth physique, including birth weight, birth length, and head circumference(β_(BW)=0.31, P=0.002;β_(BL)=0.82, P=0.007;β_(HC)=0.72, P=0.016). Logistic regression analysis showed a positive relation between the rate of weight gain in the 2 nd and the incidence of cesarean section(OR=3.59, 95%CI 1.08-11.90). The rate of weight gain in the 3 rd trimester turned out to be positively correlated with the incidence of abnormal amniotic fluid(OR=13.04, 95%CI 1.70-100.10)and negatively correlated with the incidence of gestational diabetes(OR=0.001, 95%CI 0-0.01).
CONCLUSION: The weight gain during pregnancy was unsatisfactory in most of Shenzhen women in 2013. The rate of weight gain in the 2 nd trimester was positively correlated to the birth physique of newborns. The excessive rapid and slow growth of weight gain during the 2 nd-3 rd trimester could both increase the risks of adverse pregnancy outcomes.
METHODS: Healthy singleton pregnant women aged from 20 to 35, within 12 weeks of gestation, in the Shenzhen Maternal and Child Health Hospital for routine medical checkups were recruited. Information about their dietary intake and lifestyle behavior during pregnancy, pregnancy outcomes and neonatal birth outcomes were followed up prospectively, meanwhile maternal weight at per trimester and newborn birth physique were measured, and 421 valid cases were analyzed.
RESULTS: Significantly lower rate of weight gain in the 1 st trimester((0.05±0.15)kg/w) were observed than that in the 2 nd trimester((0.56±0.17)kg/w) and the 3 rd trimester((0.54±0.22)kg/w)(P<0.01). No significant difference was found for that between the 2 nd and 3 rd trimester(P>0.05). The multiple linear regression analysis showed positive correlations between maternal weight gain rate in the 2 nd trimester and the neonatal birth physique, including birth weight, birth length, and head circumference(β_(BW)=0.31, P=0.002;β_(BL)=0.82, P=0.007;β_(HC)=0.72, P=0.016). Logistic regression analysis showed a positive relation between the rate of weight gain in the 2 nd and the incidence of cesarean section(OR=3.59, 95%CI 1.08-11.90). The rate of weight gain in the 3 rd trimester turned out to be positively correlated with the incidence of abnormal amniotic fluid(OR=13.04, 95%CI 1.70-100.10)and negatively correlated with the incidence of gestational diabetes(OR=0.001, 95%CI 0-0.01).
CONCLUSION: The weight gain during pregnancy was unsatisfactory in most of Shenzhen women in 2013. The rate of weight gain in the 2 nd trimester was positively correlated to the birth physique of newborns. The excessive rapid and slow growth of weight gain during the 2 nd-3 rd trimester could both increase the risks of adverse pregnancy outcomes.