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围产儿死亡率是评价围产医学水平的主要指标。在发达国家 ,90年代以后早产、低体重儿死亡率明显下降 ,因此围产儿死亡率的计算由以往的围产期I扩展为孕20周～产后28天。死亡分类采用Nordic -baltic分类法 ,更深入挖掘了通过医疗保健部门可避免的潜在因素。死亡评审使用更客观更合适的创造条件(Suboptimalcare)代替可避免一词。影响死亡的因素不仅有母婴高危因素 ,而且与人口、生态环境及社会经济因素有关
Perinatal mortality is the main indicator of perinatal medical evaluation. In developed countries, the mortality rate of preterm and low birth weight children has dropped significantly after the 1990s. Therefore, the perinatal mortality rate has been expanded from the previous perinatal period I to 20 weeks pregnant ~ 28 days postpartum. The Nordic-baltic classification of deaths is used to dig deeper into the potential avenues that can be avoided through the healthcare sector. Death assessment uses the more objective and appropriate creation conditions (Suboptimalcare) instead of the word avoidable. The factors affecting death are not only the risk factors of mother and infant, but also the population, ecological environment and socio-economic factors