| Objective:The nutritional status of pregnant women directly or indirectly affects the near and long-term health of the pregnant woman and the fetus,while the weight change during pregnancy is an important indicator of nutrition during pregnancy.This study will observe the different effects of pregnancy,middle and late weight gain on pregnancy outcomes in order to provide a more scientific and reasonable theoretical basis for clinical monitoring of weight gain during pregnancy.Method:In this study,the retrospective method and tracking method were used to select 1,300 pregnant women who were hospitalized in three hospitals in zibo city from January 2017 to July 2017.1.Inclusion criteria:Pre-pregnancy physical health,no internal surgery disease,no diabetes,hypertension and other related chronic disease history,no alcohol,smoking history.During pregnancy,there was no placental placenta,placental abruption,single fetus,natural conception,and the data of production and examination were complete,and the subjects were included in the study according to the principle of informed consent.2.Obvervational index:(1)weight during pregnancy: ask about the weight before pregnancy,12 weeks of pregnancy,28 weeks of pregnancy,and the weight at the end of pregnancy;Weight gain in early pregnancy = weight at 12 weeks-pre-pregnancy weight;Gestational weight gain = weight at 28 weeks of pregnancy minus 12 weeks of pregnancy;Late pregnancy weight gain = weight loss at 28 weeks during pregnancy.(2)blood glucose during pregnancy: the blood glucose value in the middle of pregnancy is the result of OGTT experiment,and the fasting blood glucose value in the late stage of pregnancy;(3)birth weight and 42 days of birth weight;(4)complications of pregnancy: gestational diabetes,gestational hypertension.(5)pregnancy outcome: premature rupture of membranes,premature delivery,fetal distress;(6)postpartum follow-up: postpartum blood pressure and blood glucose recovery and neonatal growth and development.3.Statistical methods: using spss18.0 sorts through the data analysis,will all the influence factors of the pregnancy outcome in single factor analysis,single factor analysis of meaningful factors included in the logistic regression equation,the binary logistic regression analysis,hypothesis test level set to 0.05.Consequence:Pregnant women with gestational diabetes have a higher level of pregnancy,middle and late stage of pregnancy than normal pregnant women,and the difference is statistically significant.The risk factors for gestational diabetes mellitus(Exp(B)=1.171 and Exp(B)=2.033,Exp(B)=2.327)were the risk factors for gestational diabetes.Pregnant women with gestational hypertension during pregnancy,middle and late stage of pregnancy were higher than those with normal blood pressure,P < 0.05.The risk factors for hypertension during pregnancy were the risk factors for gestational hypertension(Exp(B)=1.115 and Exp(B)=1.133).With the increase of the age and BMI of pregnant women,the normal proportion of postpartum blood pressure and blood glucose level was decreased,and the difference was statistically significant.Weight gain during pregnancy is not conducive to postpartum blood pressure and blood glucose level recovery.Gestational diabetes is a risk factor for premature rupture of the membranes(Exp(B)=2.743),and the increase in gestational age is a protective factor(Exp(B)=0.898).Gestational hypertension,gestational diabetes,and low pre-pregnancy weight were the risk factors for premature delivery(Exp(B)=9.194,Exp(B)= 4.641,Exp(B)=32.248).Mothers with low birth weight and weight gain were lower than normal birth weight mothers,P < 0.05.Gestational hypertension is a risk factor for low birth weight(Exp(B)=3.788).The maternal weight gain was higher during pregnancy than the normal birth weight mother,P < 0.05.In the middle of gestational age,the risk factors for the occurrence of large children(Exp(B)=1.108,Exp(B)= 2.087,Exp(B)= 3.126).There was a correlation between the Kaup index and the mother’s pre-pregnancy BMI,termination of gestational age,and early and mid-term weight gain.Conclusion: Early pregnancy weight gain is a risk factor for GDM.Early and mid-pregnancy weight gain increases the risk of hypertensive disorders during pregnancy.Pregnancy with gestational diabetes,pregnancy complications of hypertension increases the risk of premature rupture of membranes and premature birth.Excessive weight gain during pregnancy is not conducive to the recovery of postpartum blood glucose and blood pressure.Weight gain during the second trimester is a risk factor for macrosomia.The influence of different levels of weight gain during pregnancy on the outcome of pregnancy is different.The actual clinical work should be given scientific and reasonable monitoring of the weight gain during each pregnancy. |