早产儿管理早 产 儿 管 理 细 节A Decade of Change for Child Survival, 2012Contribution of neonatal deaths tounder-5 mortalityBlack R et al. Lancet 2010Lee ACC, Wall SN, Cousens S . BMC Public Health 2011Global causes of neonatal death新生儿新定义v超早产儿(Extre Pre Term) 28周v早产儿(Pre Term):小于37周v早期儿(Early Term):37周38周6天v足月儿(Full Term):39周40周6天v晚期儿(Late Term):41周41周6天v过期产儿(Post Term):42周以上