[Retracted] Prediction and Evaluation of Machine Learning Algorithm for Prediction of Blood Transfusion during Cesarean Section and Analysis of Risk Factors of Hypothermia during Anesthesia Recovery
Table 4
Comparison of ultrasonic indexes and preoperative examination indexes between the blood transfusion group and nontransfusion group .
Group
Blood transfusion group ()
Nontransfusion group ()
Ultrasonic index
Fetal umbilical cord around neck
23 (14.93)
67 (15.02)
0.000
0.979
Thickness of the lower segment of the anterior wall of the uterus(mm)