The Relationship Between Pregnancy Stress,Pre-pregnancy BMI,Pregnancy Weight Gain And Infant Anemia

ObjectivesTo explore the effect of pre-pregnancy BMI,pregnancy weight gain,pregnancy stress and other factors on infant anemia.To provide clues and basis for pregnancy care and prevention of infantile anemia.MethodsThe research site is located in xiaoxian county,suzhou,anhui province,and this is a retrospective study.Children and their mothers who were examined in 13 local maternal and child health departments were selected as the subjects of the study.From August 2014 to February 2015.At the same time,the subjects of the study were selected strictly,and the staff of the health care institute were trained.Finally,we distributed the self-made questionnaire "Maternity and Infant questionnaire" to the infant mothers who came to the health hospital for physical examination.And guidance to urge them to fill in.A total of 1,110 questionnaires were sent out and 1,050 questionnaires were collected,The response rate is 94.6%.Finally,a total of 980 valid questionnaires were obtained.Elimination of multiple births,gestational hypertension,gestational diabetes and other metabolic patients,severe birth defects,and other major organ diseases.The contents of the questionnaire included age of mother,weight before pregnancy,weight before delivery,height of mother,education level of mother,education level of father,pregnancy related condition,smoking and drinking of mother before and during pregnancy,psychological condition of mother.The condition of delivery and gestational weeks are obtained from maternal health card delivery records.The guidelines for weight gain during pregnancy were revised by the American Institute of Medicine(IOM)in 2009 as the criteria for weight gain during pregnancy.The pregnant women’s life events scale was used to assess the maternal stress during pregnancy,divided into subjective stress(SE)and objective stress(OE),and Anxiety traits were assessed by State-trait Anxiety inventory(STAI).At the end,the relationship between pregnancy stress,BMI before pregnancy,weight gain during pregnancy and anemia in infants was studied by using classification multivariate logistic regression analysis.To observe the relationship between pregnancy weight gain,pregnancy stress and infant anemia at the different prepregnancy BMI groups.ResultsA total of 980 eligible pregnant women were enrolled in this study.The gestational weeks of mothers were 37~44 weeks,with an average of(38.57±1.72)weeks.Girls and boys was52.6%,47.4%.Age of mother≤24 was 48.9%,25~29 was 35.9%,≥30 was 15.2%,Mothers educated junior secondary and below was 72.1%,Senior secondary and above was 27.9%,Father educated junior secondary and below was 69.8%,Senior secondary and above was 31.2%,First pregnancy of a pregnant woman was 55.5%,First delivery was 61.6%,Anxiety trait was 6.1%,breast feeding was 65.3%,artificial feeding was 14.7%,mixed feeding was 20%,19.0% women were pre-pregnancy underweight,71.0% were pre-pregnancy normal weight,and 10.0% were overweight/obesity,27.8% women were Inadequate GWG,while 31.4% were appropriate GWG,but 40.8% excessive GWG,The total of 487 anaemia,anemia detection rate is 49.7%.Anemia as the dependent variable,pre-pregnancy BMI,pregnancy weight gain,pregnancy stress as independent variables,and controls the gestational age,mother age,feeding way,mother’s education level,parity,delivery mode for Logistic regression analysis.The results suggested that pre-pregnancy underweight(OR=1.83,95%CI=1.278~2.606),inadequate gestational weight(OR=2.29,95%CI=1.610~3.259),pregnancy stress(OR=1.003,95% CI=1.002~1.004)may be a risk factor for infant anemia.pre-pregnancy normal weight merge,s inadequate gestational weight(OR=2.34,95%CI=1.541~3.548)could increase the risk of infant anaemia.The effect of feeding mode and gestational age on infant anemia were not statistically significant.ConclusionThe pre-pregnancy BMI,gestational weight gain and pregnancy stress may be the risk factors for infant anemia.control of pre-pregnancy BMI,weight gain during pregnancy and pregnancy stress can effectively reduce the risk of anemia.Thus,interventions of providing more assistance of weight gain control may be recommended as a part of antenatal care for mothers and children,reduce the incidence of adverse stress during pregnancy,to improve the immediate and long-term health of women and their offspring.