Hafiz Pegah, Nematollahi Mohtaram, Boostani Reza, Namavar Jahromi Bahia
Department of Medical Informatics, School of Management and Medical Informatics, Shiraz University of Medical Sciences, Shiraz, Iran.
Anesthesiology and Critical Care Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Int J Fertil Steril. 2017 Oct;11(3):184-190. doi: 10.22074/ijfs.2017.4882. Epub 2017 Aug 27.
In vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) are two important subsets of the assisted reproductive techniques, used for the treatment of infertility. Predicting implantation outcome of IVF/ICSI or the chance of pregnancy is essential for infertile couples, since these treatments are complex and expensive with a low probability of conception.
In this cross-sectional study, the data of 486 patients were collected using census method. The IVF/ICSI dataset contains 29 variables along with an identifier for each patient that is either negative or positive. Mean accuracy and mean area under the receiver operating characteristic (ROC) curve are calculated for the classifiers. Sensitivity, specificity, positive and negative predictive values, and likelihood ratios of classifiers are employed as indicators of performance. The state-of-art classifiers which are candidates for this study include support vector machines, recursive partitioning (RPART), random forest (RF), adaptive boosting, and one-nearest neighbor.
RF and RPART outperform the other comparable methods. The results revealed the areas under the ROC curve (AUC) as 84.23 and 82.05%, respectively. The importance of IVF/ICSI features was extracted from the output of RPART. Our findings demonstrate that the probability of pregnancy is low for women aged above 38.
Classifiers RF and RPART are better at predicting IVF/ICSI cases compared to other decision makers that were tested in our study. Elicited decision rules of RPART determine useful predictive features of IVF/ICSI. Out of 20 factors, the age of woman, number of developed embryos, and serum estradiol level on the day of human chorionic gonadotropin administration are the three best features for such prediction.
体外受精(IVF)和卵胞浆内单精子注射(ICSI)是辅助生殖技术的两个重要分支,用于治疗不孕症。预测IVF/ICSI的着床结局或妊娠几率对不孕夫妇至关重要,因为这些治疗复杂且昂贵,受孕概率较低。
在这项横断面研究中,采用普查方法收集了486例患者的数据。IVF/ICSI数据集包含29个变量以及每个患者的标识符,该标识符为阴性或阳性。计算分类器的平均准确率和接收器操作特征(ROC)曲线下的平均面积。分类器的灵敏度、特异度、阳性和阴性预测值以及似然比用作性能指标。本研究的候选先进分类器包括支持向量机、递归划分(RPART)、随机森林(RF)、自适应增强和单最近邻。
RF和RPART的表现优于其他可比方法。结果显示,ROC曲线下面积(AUC)分别为84.23%和82.05%。从RPART的输出中提取了IVF/ICSI特征的重要性。我们的研究结果表明,38岁以上女性的妊娠概率较低。
与我们研究中测试的其他决策方法相比,分类器RF和RPART在预测IVF/ICSI病例方面表现更好。RPART得出的决策规则确定了IVF/ICSI的有用预测特征。在20个因素中,女性年龄、发育胚胎数量和人绒毛膜促性腺激素给药当天的血清雌二醇水平是此类预测的三个最佳特征。