Hamilton L A, Gottschalk W, Vidyasagar D, Horn C, Wynn R M
Int J Gynaecol Obstet. 1978;15(6):483-90. doi: 10.1002/j.1879-3479.1977.tb00738.x.
A protocol of chronic antepartum surveillance was initiated at the University of Illinois hospitals in 1973 to assess the impact on perinatal mortality. At the same time, a policy of unselected fetal heart rate (FHR) monitoring was initiated to judge the effect on the intrapartum stillbirth rate. The impact of both programs played a significant role in the decline of perinatal mortality rates for infants weighing more than 1 500 g, from 21.1/1 000 births in 1970--1971 to 14.4/1 000 births in the monitored years 1973 and 1974 (p less than 0.02).
1973年，伊利诺伊大学医院启动了一项慢性产前监测方案，以评估其对围产期死亡率的影响。与此同时，启动了一项对所有胎儿进行心率（FHR）监测的政策，以判断其对产时死产率的影响。这两个项目的影响在体重超过1500克婴儿的围产期死亡率下降中发挥了重要作用，从1970 - 1971年的21.1/1000例出生下降到1973年和1974年监测年份的14.4/1000例出生（p<0.02）。
