Table 1 Patients clinical features of the study groups

Maternal age

32.206 ± 4.116

31.082 ± 4.195

0.093^a

BMI (kg/m²)

26.016 ± 3.155

25.792 ± 4.115

0.705 ^a

Gravidity

3(2,4)

3(2,4)

0.143^b

Parity

2(2,2)

2(1,2)

0.123^b

Number of abortions

1(1,2)

1(1,2)

0.413^b

Number of previous cesarean delivery

1(1,2)

1(1,2)

0.088^b

Previous history of placental previa

7 (9.589)

4 (4.706)

0.229^c

Gestational age at MRI (weeks)

33.264 ± 2.150

33.784 ± 1.764

0.097^a

Prenatal vaginal bleeding

25(34.247)

21(24.706)

0.188^c

Gestational age at delivery (weeks)

35.240 ± 1.534

36.105 ± 1.043

0.001^a

Neonatal birth weight (g)

2426.164 ± 376.536

2704.706 ± 449.446

0.001^a

Operation time (min)

90.945 ± 28.915

78.464 ± 30.867

0.010^a

Intraoperative blood loss (mL)

2480.548 ± 601.486

1259.024 ± 373.163

0.001^a

Blood transfusion (mL)

1884.795 ± 603.453

792.471 ± 424.713

0.001^a

ICU admission

15 (20.548)

6 (7.059)

0.013^c

Hysterectomy

5 (6.849)

1 (1.176)

0.063^c

The type of PAS

0.002^c

Accreta

31 (42.466)

52 (61.176)

Increta

25 (34.247)

29 (34.118)

Percreta

17 (23.288)

4 (4.706)