Tew M
Lancet. 1979 Jun 30;1(8131):1388-90. doi: 10.1016/s0140-6736(79)92020-8.
The distribution of births for each place of delivery was studied with a composite antenatal prediction score, incorporating the most important risk factors, which was developed for the second volume of British Births 1970. Although consultant hospitals are seen to have the greatest share of births at moderate and high risk, this is not sufficient to account for the whole amount by which perinatal mortality in these hospitals exceeds that in other places of delivery.
利用一个综合产前预测评分研究了每个分娩地点的分娩分布情况，该评分纳入了最重要的风险因素，是为《1970年英国出生情况第二卷》编制的。尽管可以看出，在中度和高度风险分娩中，专科医院所占份额最大，但这不足以解释这些医院的围产期死亡率高于其他分娩地点的全部幅度。
