Objective: To explore the association between dietary supplementation during pregnancy and low birth weight. Methods: 11 311 pregnant women who had regularly visited outpatient gynecology clinic of Wuhan Women and Children Medical Center with intention to delivery in the hospital were recruited in the cohort between September 2012 and October 2014. Social-demographic characteristics of pregnant women and spouses, dietary supplementation during pregnancy, pre-pregnancy body mass index (BMI), exercise in the third trimester, work during pregnancy, pregnancy complications and related pregnancy information were collected through self-designed questionnaires, maternal health manuals and medical records. Birth weight of the newborns was measured. Non-conditional multivariate logistic regression analysis was used to determine the correlation between dietary supplementation and low birth weight. Results: 11 311 pregnant women were (28.21±3.70) years old, and they gave birth to 477 low birth weight newborns (4.2%). Iron supplementation during the whole period of pregnancy (OR (95%CI): 0.60 (0.43-0.63)) and folic acid supplementation during the early pregnancy (OR (95%CI): 0.74 (0.60-0.90)) were negatively associated with low birth weight. Conclusion Supplementation of iron during the whole period of pregnancy and folic acid during the early pregnancy would reduce the risk of low birth weight.

Objective To understand the prevalence of domestic violence and the correlation between domestic violence and posttraumatic stress disorder (PTSD) so as to improve the mental health status of women in Wuhan city of China.Methods A cross-sectional study was conducted in the community health service center in Wuhan.Participants were women who came to the center for gynecological examination.Data on general condition,social support,injury,epidemiological characteristics of domestic violence and PTSD were gathered.Chi-square,student-t and CochranArmitage trend tests were employed to compare the distribution of each characteristic variable between PTSD and non-PTSD group.Binary logistic regression was used to analyze the correlation between domestic violence and PTSD.Results A total of 1 015 women were effectively surveyed.The life-time incidence rates of events related to domestic,psychological,physical and sexual violence were 29.36％,28.28％,6.60％ and 3.55％,respectively.The overall prevalence rate of PTSD was 4.73％.Women who suffered from domestic violence had higher risk of PTSD (OR=2.11,95％ CI:1.04-4.29) than those who never experiencing domestic violence.Women who suffered from psychological or physical violence were 5.06 times more likely to suffer from PTSD (OR=5.06,95％CI:1.91-13.42).Conclusion A strong correlation between domestic violence and PTSD was seen.Victims who suffered from domestic violence should be provided with psychological counseling to reduce the risk of PTSD.