Gestational age

[28SA - 29SA[

1

1.4

7

5

[29SA - 30SA[

4

5.7

10

7.1

[30SA - 31SA[

18

25.7

26

18.6

[31SA - 32SA[

15

21.4

26

18.6

[32SA - 33SA[

32

45.7

71

50.7

Etiologies of prematurity

Premature rupture of membranes

22

31.4

56

40

Placenta previa

5

7.1

5

3.6

Intrauterine growth retardation

4

5.7

1

0.7

Gestational hypertension

1

1.4

7

5

Pré-éclampsia

8

11.4

0

0

HELLP Syndrome

2

2.9

0

0

Retroplacental Hematoma

2

2.9

1

0.7

Fetal heart rhythm abnormality

0

0

5

3.6

Not found

12

17.1

22

15.7

other*

14

20

43

30.7