Research Article

[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 .

GroupBlood transfusion group ()Nontransfusion group ()

Ultrasonic index
Fetal umbilical cord around neck23 (14.93)67 (15.02)0.0000.979
Thickness of the lower segment of the anterior wall of the uterus(mm)6.257≤0.001
Amniotic fluid index(mm)1.2090.226
Placenta previa120 (7.92)10 (2.24)386.302≤0.001
Preoperative fetal heart rate1.4500.147
Preoperative test index
Hb (g·dL-1)14.536≤0.001
PLT (109·L-1)2.5060.012
PT (s)17.654≤0.001
FIB (g·L-1)9.097≤0.001
APTT (s)13.264≤0.001
TT (s)26.913≤0.001