SCRN Maternal Interview Vitamin and Mineral Supplements Dataset in Stillbirth Collaborative Research Network Study

Data on maternal use of vitamin and mineral supplements prior to and during index pregnancy (Maternal Interview Form F03A)
Study Description
Population-based case–control study of the causes and extent of stillbirth (SB) in the United States. Participants were recruited at delivery between March 2006 and September 2008 from 59 urban and rural hospitals in 5 geographic areas. All women with SB and a representative sample of women with live births, oversampled for those delivering at <32 weeks gestation and those of African descent delivering at =32 weeks gestation, were approached for enrollment. Pregnancy terminations were excluded. The study included maternal interview, chart abstraction, placental exam, and postmortem (SB only). Data collection focused on surveillance and epidemiology, maternal disease, immunology and infections, placental pathology, and genetics. A subset of SCRN participants consented to re-contact which examined subsequent pregnancies and pregnancy complications, grief resolution, and whether life-course stresses and environmental factors were associated with an increased risk of SB. Biospecimens are available. Women who delivered a stillbirth or live birth and consented to participate in the Stillbirth Collaborative Research Network Study and their babies

孕产妇在本次妊娠前后服用维生素与矿物质补充剂的相关数据（孕产妇访谈表F03A）
研究描述
本研究为美国地区针对死胎（Stillbirth, SB）的病因及流行范围开展的基于人群的病例对照研究。研究于2006年3月至2008年9月间，从全美5个地理区域的59家城乡医院的分娩人群中招募受试者。所有死胎产妇以及活产产妇的代表性样本均被邀请入组，该样本针对妊娠<32周分娩者及妊娠≥32周分娩的非洲裔产妇进行了过度抽样。妊娠终止病例被排除在本研究之外。
本研究涵盖孕产妇访谈、病历摘录、胎盘检查以及仅针对死胎病例的尸检。数据采集聚焦于监测与流行病学、孕产妇疾病、免疫学与感染、胎盘病理学及遗传学领域。
部分死胎协作研究网络（Stillbirth Collaborative Research Network, SCRN）的受试者同意接受后续随访，该随访旨在探究后续妊娠及妊娠并发症、悲伤情绪缓解情况，以及生命历程中的应激与环境因素是否与死胎风险升高相关。
本研究留存有生物样本。
所有同意参与死胎协作研究网络研究的死胎产妇、活产产妇及其新生儿