Infants of very low birthweight. I: Perinatal factors affecting survival.
The neonatal mortality of 692 liveborn infants with birthweights of 2000g or less born in south-east London was studied. They represented 98 per cent 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 were shown to have 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 organisation of neonatal care are discussed.
D001724:Birth Weight; D001831:Body Temperature; D002662:Child Health Services; D004739:England; D005260:Female; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000401:mortality; D008297:Male; D008423:Maternal Age; D007744:Obstetric Labor Complications / Q000401:mortality; D010298:Parity; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000401:mortality; D011295:Prenatal Care; D012737:Sex Factors; D013997:Time Factors