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Table 2 Patient demographics and surgical outcomes before and after propensity score matching

From: Placenta previa with posterior extrauterine adhesion: clinical features and management practice

 

After PS matching

PEUA

Control

P value

Number of cases

24

48

 

 PAS

1 (4.2)

13 (27.1%)

0.03

Maternal age, years (range)

34 (27–48)

35.5 (26–42)

0.565

BMI at delivery (range)

21.8 (19.1–27.2)

23.4 (18.8–32.0)

0.08

IVF-ET status

9 (37.5)

12 (25.0%)

0.286

GA at delivery, wks (range)

36.5 (29–37)

36 (30–38)

0.571

Prior CDs, None

21 (87.5)

38 (79.2%)

0.999

Type of PP

  

0.447

 Total PP

16 (66.7)

22 (45.8%)

 

 Othersa

8 (33.3)

26 (54.2%)

 

Location of placenta

  

0.14

 Anterior or central

1 (4.2)

15 (31.3%)

 

 Posterior

23 (95.8)

33 (58.7%)

 

Surgical outcomes

   

 Intop blood loss (range)

1515 (500–4500)

870 (200–2900)

 < 0.01

 Transfusion

2 (8.3)

2 (4.2%)

0.60

 Hysterectomy

1 (4.2)

12 (25.0%)

0.05

  For PAS

1

11

0.05

  1. Number (% per group) or median is shown. Significant P-values are emboldened
  2. PEUA posterior extrauterine adhesion, PP placenta previa, Intop intraoperative, PS propensity score, GA gestational age, PTB preterm birth, PAS placenta accreta spectrum, BMI body mass index, IVF-ET in vitro fertilization-embryo transfer, wk week, CD cesarean delivery
  3. aOthers included partial PP, marginal PP, and low-lying placenta
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