Objectives This study examined changes in the reporting of very low-birthweight infants in Alabama from 1974 to 1994 and the impact on perinatal mortality rates.
Linked live bith, neonatal death, and stillbirth records of infants born weighing less than 1500 g were compared.
The changes in mortality over time ranged from a drop from 100% to 92% in the under-500-g group to a drop from 39% to 4% in the 1000-to 1499-g group.
The percentage of total births weighing less than 500g increased by 155%, the percentage of 1000-to 1499-g births increased by only 7. As a result, the percentage of neonatal mortality attributable to live births below 500 g increased from 3% to 32%. Conclusions.
Increased reporting of births below 500 h has masked improvements in neonatal mortality.
Mots-clés Pascal : Mortalité, Périnatal, Poids naissance très faible, Epidémiologie, Facteur risque, Evolution, Taux, Nouveau né, Homme, Etats Unis, Amérique du Nord, Amérique
Mots-clés Pascal anglais : Mortality, Perinatal, Very low birthweight, Epidemiology, Risk factor, Evolution, Rate, Newborn, Human, United States, North America, America
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0413858
Code Inist : 002B30A01A2. Création : 25/01/1999.