Table 1 Demographic and Clinical Characteristics

Maternal Age at Delivery, years

37 ± 3.7

31 ± 1.3

 African-American

2 (29)

2 (15)

 Hispanic

0

3 (23)

 White

5 (71)

6 (46)

 Other/Not Specified

0

2 (15)

Gravidity

4 [2–6]

3[2–8]

Parity

2 [1–3]

2 [1–4]

Gestational Age, weeks

35 [18–37]

34 [28–37]

BMI

28 [20–54]

30 [22–53]

 1

4 (57)

6 (46)

 2

2 (29)

6 (46)

 3

1 (14)

1 (8)

 Uterine curettage

1 (14)

3 (23)

 Hysteroscopic myomectomy

0

1 (8)

 Partial previa

2 (29)

3 (23)

 Complete previa

3 (43)

9 (69)

 Vasa previa

1 (14)

1 (18)

 Scheduled

3 (43)

6 (46)

 Contractions

1 (14)

3 (23)

 Vaginal bleeding

1(14)

1 (8)

 Hematuria

1 (14)

1 (8)

 Fetal growth restriction

1 (14)

1 (8)

 Premature rupture of membranes

0

1 (8)

 Accreta

0

0

 Increta

4 (57)

7 (54)

 Percreta

3 (43)

4 (31)

 Inconclusive^a

0

2 (15)