Results w_2 Umbilical stalk fetal position and birth process dysfunction were the main obstetric causes of asphyxia neonatorum by 35.16 % and 32.58 % respectively ;

结果新生儿窒息的产科原因中 脐带因素、胎位及产程异常为主要原因，分别占 35.16%和32.58%；