Gordon R R
Br Med J. 1977 May 21;1(6072):1313-5. doi: 10.1136/bmj.1.6072.1313.
For 27 years annual figures have been kept of all infants weighing 2500 g or less born in the maternity department of the Northern General Hospital, Sheffield. The initial neonatal mortality rate (death within the first four weeks after birth) was then around 30% and is now 10%. This reduction is partly due to a decreased mortality rate among the individual weight groups but also to an increasing number of larger infants and a decreasing number of infants of low birth weight in the "high-risk" category.
在过去的27年里,谢菲尔德北部总医院产科记录了所有出生体重在2500克及以下婴儿的年度数据。最初的新生儿死亡率(出生后四周内死亡)约为30%,现在为10%。死亡率的下降部分归因于各体重组死亡率的降低,也归因于“高危”类别中体重较大婴儿数量的增加和低出生体重婴儿数量的减少。