CHANGES IN PERINATAL AND INFANT MORTALITY BY RACE IN SELECTED U.S. CITIES

本研究回顾了围产期死亡率的变化和差异 在技术快速变化的时期， 和高危妊娠的医疗管理。 它将探讨某些国家的新生儿死亡率高是否 城市可以解释为死亡率的变化， 并将比较围产期的差异 根据种族和城市规模的经验。 二次分析 国家卫生统计中心提供的数据集 是基于100%的围产期死亡报告。 审查20、24和28周期间的胎儿死亡率 妊娠和新生儿死亡的0-7天和8-28天 被用来检查潜在的报告差异， 城市和新生儿死亡转移到后一时期。 这些数据尚未公开供分析。 的 分析应提供更好的标准， 不同地区围产期死亡率。

This study reviews changes and differences in perinatal mortality for similar populations over a period of rapid change in technology and medical management of high risk pregnancies. It will explore whether high rates of neonatal mortality in certain cities can be explained by shifts in mortality from the late fetal to the neonatal period and will compare differences in perinatal experience according to race and city size. A secondary analysis of data sets provided by the National Center for Health Statistics was done based on 100 percent reporting of perinatal deaths. Review of fetal death rates for the periods 20, 24 and 28 weeks gestation and of neonatal deaths for the periods 0-7 and 8-28 days is being used to examine potential reporting differences among cities and shifting of neonatal deaths into the latter period. These data have not been available publicly for analysis. The analysis should provide an improved standard for comparison of perinatal mortality in differing geographic sites.