论文类型:调研报告 Title: Periconceptional health and research related to birth defects ABSTRACT Objective: Discuss the ways to strengthen the role of periconceptional health and do the primary prevention of birth defects.Provide some data to support the cause for promoting prenatal and postnatal care for our country. Methods:According to China "Chinese birth defect detection schemes",do the research with the standard of 23 categories of birth defects defining in the "China's Birth Defects Manual" .And learn from the past and predict the results of the literature, selecting birth defects which related to pregnancy and caused by factors in the periconceptiona to do the research.Using the random sampling method to take a total of 564 pregnant women of obstetric department and pre-pregnancy health sector of maternal child-bearing age, including 156 cases pre-pregnancy women and 408 cases of women who expected to have baby.The questionnaire was coming from two hospitals which are in different region in January 2010 - May 2011.Analyze the 12 relevant variables for multivariate logistic regression using SPSS software. Results:In the periconceptional period folic acid supplementation can significantly reduce neural tube defects risk, while pre-pregnancy counseling significantly improved the pregnancy rate (p<0.05), good nutrition condition of maternal have a significant effect on fetal development.Accepting Ray, amniotic fluid abnormalities, high blood pressure are risk factors for birth defects; Exposuring to harmful substances during pregnancy, family disease history, active or passive smoking for pregnant women affect fetal development. Mother's education level is high, iodine supplementation during pregnancy have good for preventing the birth defects . Conclusion: Strengthen the technology of periconceptional health and provide some suggestions to quasi-pregnant women . KEYWORDS: Periconceptional; birth defects TYPE OF THESIS:Investigation And Reserch Report