Characteristic
No adverse events (n=91) Adverse events (n=12)
P value
Age, y 30.46±4.62 32.67±5.55 0.132
Previous abortion(%) 32(35.2) 5(41.7) 0.752
ECG
V-Bigeminy(%) 18(19.8) 6(50.0) 0.030
Multifocal PVC(%) 2(2.2) 2(16.7) 0.066
NSVT(%) 1(1.1) 0(0) 1.000
Origin
LV(%) 28(30.8) 5(41.7) 0.515
PVC burden(%) 2.30(0.88,4.85) 9.02(7.43,11.71) 0.000
LVEF 65.69±2.54 64.16±1.56 0.032
Childbirth type
Natural childbirth(%) 55(60.4) 5(41.7) 0.351