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目的探讨并总结找出一种简单易行判断总体妊娠率下降的方法。方法计算临床结局稳定时期的平均妊娠率,依据二项分布原理,找出概率不超过5%的至多妊娠数,与每天实际妊娠数对比判断妊娠率是否下降。结果郑州大学第三附属医院生殖中心2013年上半年的平均妊娠率为56.39%,每天的移植病人数在7~25个之内时,概率不超过5%的至多妊娠数分别1~9个,每天的移植病人数为4~6个时,概率不超过5%的至多妊娠数分别为0。结论每天实际妊娠数与概率不超过5%的至多妊娠数相比较,可作为一简单易行判断总体妊娠率下降的方法。
Objective To explore and summarize to find a simple and easy to determine the overall decline in pregnancy rate. Methods The average pregnancy rate in the stable clinical outcome was calculated. According to the principle of binomial distribution, the maximum number of pregnancies with no more than 5% probability was found. The pregnancy rate was compared with the actual number of pregnancies. Results The average pregnancy rate of the reproductive center of the Third Affiliated Hospital of Zhengzhou University in the first half of 2013 was 56.39%. When the number of transplanted patients per day was between 7 and 25, the maximum number of pregnancies with no more than 5% The daily number of transplant patients is 4 to 6, the probability of no more than 5% of the maximum number of pregnancy were 0. Conclusion The actual number of pregnancies per day is comparable to the maximum number of pregnancies with no more than 5% probability and can be used as a simple and easy way to judge the overall pregnancy rate decline.