Murday V, Slack J
Br Med J (Clin Res Ed). 1985 Nov 9;291(6505):1315-8. doi: 10.1136/bmj.291.6505.1315.
The suggested strategies for a screening programme for Down's syndrome by maternal serum alpha fetoprotein concentration were examined and tested on the experience of the North East Thames Regional. Screening by maternal serum alpha fetoprotein concentration may be used to identify pregnancies at increased risk, but this is useful only in women aged over 32 whose collective risk is greater than one in 200. The absolute probability of carrying babies with Down's syndrome for individuals in this high risk group can then be calculated and used to decide whether further diagnosis by amniocentesis is desired.
根据东北泰晤士地区的经验,对通过孕妇血清甲胎蛋白浓度进行唐氏综合征筛查计划的建议策略进行了研究和测试。通过孕妇血清甲胎蛋白浓度进行筛查可用于识别风险增加的妊娠,但这仅对年龄超过32岁、总体风险大于二百分之一的女性有用。然后可以计算出这个高风险组中个体怀有唐氏综合征患儿的绝对概率,并用于决定是否需要通过羊膜穿刺术进行进一步诊断。