SURVIVAL & HEALTH STATUS ANALYSIS OF PREMATURE, HIGH RISK DELIVERIES

这项全国性的研究将确定可用水平的影响 医院的分娩技术对生存和后续健康的影响 三岁儿童的状况。这项国家研究纳入了 极低出生体重儿以及胎儿和婴儿的过多样本 死亡。分娩的存活时间将按死亡年龄进行分析 胎儿死亡的婴儿或胎龄，临产时的症状， 干预措施的使用，以及在 分娩医院，同时考虑胎龄和其他风险 各种因素。三岁时的健康状况差异将通过以下方式获得 1991年全国一项纵向后续行动中包括的措施 对1988年出生的所有儿童进行的代表性调查 国家卫生统计中心(NCHS)。健康后果 措施将包括发展、总体健康状况、慢性疾病 病情，最近的疾病，呼吸暂停监护仪和耳管的使用， 使用维生素/矿物质，以及使用家庭治疗。医院和医生 围产期和儿科时期的记录包括在 分析。

This national study will determine the effect of the available level of technology at the hospital of delivery on survival and subsequent health status of children at age three. The national study incorporates oversamples of very low birth weight infants as well as fetal and infant deaths. Survival time of deliveries will be analyzed by age at death for infants or gestational age for a fetal death, symptoms at presentation, use of interventions, and level of technological support available at the delivery hospital while accounting for gestational age and other risk factors. Health status differences at age three will be obtained from measures included in a 1991 longitudinal follow-up of a nationally representative survey of all children born in 1988 performed by the National Center for Health Statistics (NCHS). The health outcome measures will include development, overall health status, chronic conditions, recent illness, use of apnea monitors and ear tubes, vitamin/mineral use, and use of home treatments. Hospital and physician records from the perinatal and pediatric period are included in the analysis.