Table 1 Demographic characteristics of patients with PPP (n = 33)

Age (years old)

32.82 ± 4.45

34.44 ± 4.79

0.323

BMI (kg/m2)

27.53 ± 2.69

27.60 ± 3.49

0.950

Pregnancy length (week)

36.82 ± 1.98

35.44 ± 2.34

0.075

Pregnancy (number)

3.24 ± 1.20

3.81 ± 1.24

0.217

Parity (number)

1.65 ± 0.49

1.94 ± 0.85

0.237

Prior Cesarean section (number)

1.06 ± 0.24

1.25 ± 0.58

0.234

Overall balloon occlusion time (min)

39.70 ± 58.08

–

–

Complete placenta previa

10 (58.8%)

3 (18.8%)

0.032*

Central placenta previa

5 (29.4%)

0

0.044*

Placenta implantation

13 (76.5%)

5 (31.3%)

0.015*

Preoperative vaginal bleeding

9 (52.9%)

8 (50%)

1.000