nuMoM2b Antepartum Hospital Evaluations, Procedures, and Admissions [CMB] Dataset in Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-be

Data from Antepartum Hospital Evaluations, Procedures, and Admissions [CMB] form completed for each antepartum hospital evaluation or admission lasting 23 hours or more that is not intended to lead to delivery, and for each surgical procedure performed during pregnancy regardless of the place performed or length of admission
Study Description
NuMoM2b studied underlying, interrelated, mechanisms of adverse pregnancy outcomes (e.g., preterm birth, preeclampsia, fetal growth restriction) in pregnant women with no previous pregnancy lasting 20 weeks-0 days or more estimated gestational age (nulliparas). The network included 8 clinical sites, subsites, NICHD, and a data center. Women enrolled early in pregnancy and were followed through delivery, with study visits at 6 weeks-0 days to 13 weeks-6 days, 16 weeks-0 days to 21 weeks-6 days, 22 weeks-0 days to 29 weeks-6 days gestation, and delivery. Data collected through interviews, self-administered questionnaires, clinical measurements, ultrasounds, and medical records review included demographic, psychosocial, dietary, physiologic, health, and pregnancy outcome information. Subsets of participants enrolled in sleep disordered breathing, sleep patterns and quality, and fetal adrenal gland substudies. Pregnant women with no previous pregnancy lasting =20 weeks estimated gestational age (nulliparas); although 10,038 women enrolled in the study, during consent, only 9,289 of these women agreed to release their data into shared databases maintained by NIH

本数据集源自填写于两类场景的[CMB]《产前医院评估、诊疗操作与住院》表单：其一为每项时长≥23小时且非以分娩为目的的产前医院评估或住院，其二为妊娠期内无论实施地点与住院时长的各类外科手术。
研究概述
NuMoM2b研究针对经估算胎龄≥20周0天的初产妇（nulliparas），探究其不良妊娠结局（如早产、子痫前期、胎儿生长受限）的潜在内在关联机制。该研究网络涵盖8个临床站点、亚站点、美国国立儿童健康与人类发展研究所（National Institute of Child Health and Human Development, NICHD）以及1个数据中心。研究对象于妊娠早期入组，直至分娩后完成全部随访，随访时点分别为妊娠6周0天至13周6天、16周0天至21周6天、22周0天至29周6天，以及分娩当日。研究通过访谈、自填问卷、临床测量、超声检查及病历审查收集数据，所获信息涵盖人口学特征、社会心理状况、膳食摄入、生理指标、健康状态及妊娠结局相关内容。部分受试者参与了睡眠呼吸障碍、睡眠模式与质量，以及胎儿肾上腺相关的亚研究。本研究的纳入对象为经估算胎龄≥20周的初产妇（nulliparas）；尽管共有10038名女性入组本研究，但在知情同意阶段，仅9289名女性同意将其数据共享至美国国立卫生研究院（National Institutes of Health, NIH）维护的共享数据库中。