Abstract: A retrospective study was made of 3 184 live births. The rate of neonatal asphyxia was 3.61 %(115/3 184), among which severe cases are 45.2%(52/115). Multi factors of asphyxia such as fatal placental unit function, birth weight, gestational age, preterm labor etc were ana lysed and showed that the most important aspect is intrauterine distress due to fatal placental unit disfunction. The higher rate of asphyxia was discoverd for gestational age, low birth weight, preterm delivery. The prognosis of asphyxia is related with gestational age, birth weight, especially the duration and degree of distress.

Key words: neonatorum, asphyxia, influence