Infants of Very Low Birth weight. I: Perinatal Factors Affecting Survival

Abstract
The neonatal mortality of 692 liveborn infants with birthweights of 2000 g or less born in south-east London [England] was studied. They represented 98% of all the liveborn infants of this birthweight born and admitted to hospitals in the study area. The over-all neonatal mortality rate was 303.5 per 1000 live births. The following factors had significant and independent associations with mortality: birthweight, a history of early bleeding in the mother, hour of birth, condition of the infant assessed after birth, temperature of the infant on admission to the special care unit, and the presence of respiratory disease. Implications for the organization of neonatal care are discussed.