Pre-pregnancy Body Mass Index And Gestational Weight Gain And Their Effects On Delivery Outcomes

Objective:To explore pre-pregnant women's body mass index(BMI),weight gain during pregnancy and its impact on delivery outcome and to explore pregnant women's and medical personnel's knowledge,attitude,behavior and influencing factors of weight management during pregnancy so as to designate scientific intervention measures for clinical practice for improve the effect of weight management during pregnancy and promote maternal and infant safety.Method:Based on convenient sampling method,530 pregnant women in three hospitals of Bengbu City were selected to conduct a questionnaire survey,including general situation questionnaire,knowledge,attitude and behavior questionnaire of pregnant women's weight management;100 medical staff in obstetrics department were surveyed by cluster sampling method,including general situation questionnaire and medical staff's weight management questionnaire during pregnancy.Data was input by Excel2016 software and analyzed by Spss 21.0 software.The statistical methods used include descriptive statistics,single factor analysis,multiple linear regression analysis and chi-square test.Results:1.355 cases(67.0%)had normal body mass index before pregnancy.Pre-pregnancy BMI and weight gain of pregnant women: 62 cases(11.70%)were low weight before pregnancy,of which 16 cases(25.8%)were underweight during pregnancy,31 cases(50.0%)were suitable for growth,15 cases(24.2%)were excessive growth;355 cases(67.0%)were normal weight before pregnancy,of which 64 cases(18.1%)were under-growth during pregnancy,162 cases(45.6%)were suitable for growth,129 cases(36.3%)were excessive growth.87 cases(16.4%)were overweight before pregnancy,of which 4 cases(4.6%)were under-increased during pregnancy,19cases(21.8%)were suitable for growth,64 cases(73.6%)were excessive growth,26cases(4.9%)were obese before pregnancy,of which 6 cases(23.1%)were suitable for growth during pregnancy and 20 cases(76.9%)were excessive growth.There were significant differences between the two groups(P<0.05).2.The average score of pregnant women's weight management knowledge was(4.01±2.08).There were significant differences in the scores of residence,education level,occupation,family monthly income and number of pregnancies(P<0.05).Multiple regression analysis showed that education level and occupation were the main influencing factors.The average score of pregnant women's weight management attitude was(42.80±4.84),residence,education level,occupation.Multiple regression analysis showed that education level,childbirth experience and occupation were the main influencing factors.The average score of weight management behavior of pregnant women was(33.38±6.83).There were differences among age,place of residence,education level,work,family monthly income and childbirth.Statistical significance(P<0.05),multiple regression analysis showed that weight management attitude,weight management knowledge,education level were the main influencing factors.3.The average score of weight management knowledge(7.00±3.39)and attitude(42.08±5.11)of medical staff have statistical significance between different professional titles and whether trained(P<0.05);the average score of weight management behavior is(25.36±7.85),which has significant difference in different working hours and whether trained(P<0.05).4.Body mass index before pregnancy and weight gain during pregnancy are different,the incidence of postpartum hemorrhage,postpartum hemorrhage,neonatal weight and incidence of macrosomia are significantly different(P<0.05);complications during pregnancy,cesarean section,soft birth canal laceration and incision hematoma are significantly different among different groups of pre-pregnancy body mass index(P<0.05),and there is no difference in body weight growth level during different pregnancy.Statistical significance(P>0.05);labor,Apgar score,fetal distress and neonatal asphyxia in different pre-pregnancy body mass index and gestational weight gain levels were not significantly different(P>0.05).Conclusion:1.The proportion of pregnant women with normal body mass index beforepregnancy is lower.Pregnant women's weight management during pregnancy is unsatisfactory,and the rate of improper weight gain is higher.The level of weight gain during pregnancy is related to pre-pregnancy body mass index,and the more likely that overweight or obesity before pregnancy will lead to excessive weight gain during pregnancy.2.Pregnant women's knowledge of weight management is poorly understood,and multiple regression shows that they are influenced by education and occupation;attitude is good,multiple regression shows that they are affected by childbirth experience,education and occupation;behavior is general,multiple regression receptor emphasizes management attitude,weight management knowledge and education level.3.Medical staff have a poor understanding of pregnant women's weight management knowledge,which is related to their professional titles and whether they have received weight management training or not;their attitude towards weight management is more positive,which is also related to their professional titles and whether they have received weight management training or not;their weight management behavior is generally affected by the length of working hours and whether they have received weight management training or not.4.Postpartum complications,neonatal weight,macrosomia,postpartum hemorrhage,postpartum hemorrhage,perineal laceration,incisional hematoma,cesarean section were positively correlated with prenatal body mass index(P<0.05),and the incidence of postpartum hemorrhage,postpartum hemorrhage,neonatal weight and macrosomia were significantly different among the groups with different levels of prenatal weight growth.Complications,perineal laceration,incision hematoma,fetal distress and neonatal asphyxia during pregnancy,birth process,Apgar score and cesarean section had no significant difference among the groups with different gestational weight gain levels(P>0.05).