Pharoah P O, Alberman E D
Arch Dis Child. 1981 Feb;56(2):86-9. doi: 10.1136/adc.56.2.86.
National trends in the survival of low birthweight infants for the years 1953 to 1979 were examined. While stillbirth and day 1-28 mortality rates improved steadily throughout this period, day 0 mortality did not start to fall until the mid-1960s and then it improved in all birthweight groups. This suggests that special and intensive baby care units introduced progressively since about 1961 are exerting an appreciable effect on mortality. There is a serious lack of representative data on rates of handicap in the survivors.
研究了1953年至1979年低体重婴儿存活情况的全国趋势。在此期间，死产率和出生后第1至28天的死亡率稳步改善，但出生当天的死亡率直到20世纪60年代中期才开始下降，随后在所有出生体重组中都有所改善。这表明，自1961年左右开始逐步引入的特殊和强化婴儿护理单位对死亡率产生了显著影响。幸存者中残疾率的代表性数据严重缺乏。
