Table 1 Demographic characteristics of extremely preterm infants in IVH and non IVH groups.

From: Risk assessment and early prediction of intraventricular hemorrhage in extremely preterm infants

Values

IVH (n = 80)

Non IVH (n = 109)

χ2/Z

p

Male, n (%)

41 (51.3)

61 (56.0)

0.413

0.521

Gestational age (week)

26.6 (25.6,27.3)

27.2 (26.6,27.5)

−3.877

< 0.001

Birth weight (gram)

870 (705,1027)

980 (855,1070)

−2.551

0.011

Type of delivery

Vaginal delivery

Cesarean section

43 (53.8)

37 (46.2)

50 (45.9)

59 (54.1)

1.146

0.284

Delivery site

In-born

Out-born

66 (82.5)

14 (17.5)

100 (91.7)

9 (8.3)

3.688

0.055

Prenatal factors

Multiple gestation

IVF

Fetal distress

Intrauterine infection

Threatened preterm labor

Stained amniotic fluid

Premature rupture of membranes

Antenatal steroids

Magnesium

Gestational diabetes mellitus

Gestational hypertension

23 (28.8)

18 (22.5)

8 (10.0)

7 (8.8)

63 (78.8)

9 (11.3)

18 (22.5)

54 (67.5)

41 (51.3)

15 (18.8)

11 (13.8)

35 (32.1)

18 (16.5)

9 (8.3)

13 (11.9)

85 (78.0)

14 (12.8)

30 (27.5)

79 (72.5)

67 (61.5)

22 (20.2)

12 (11.0)

0.245

1.072

0.171

0.492

0.016

0.110

0.614

0.548

1.967

0.060

0.324

0.621

0.300

0.679

0.483

0.899

0.741

0.433

0.459

0.161

0.806

0.569

Intrapartum factors

Apgar score, median (IQR)

1- minute

5- minute

100% oxygen resuscitation

Endotracheal intubation

Chest compression

Fluid resuscitation

6 (5,8)

8 (7,9)

27 (33.8)

44 (55.0)

8 (10.0)

4 (5.0)

8 (6,8)

9 (8,9)

18 (16.5)

32 (29.4)

6 (5.5)

3 (2.8)

−3.615

−2.699

7.556

12.618

1.359

0.726

< 0.001

0.007

0.006

< 0.001

0.244

0.460

Postnatal factors

RDS

Sepsis

PDA

Hypotension

Anemia

Severe Acidosis (Ph ≤ 7.0)

Thrombopenia

IMV

73 (91.3)

21 (26.3)

56 (70.0)

36 (45.0)

44 (55.0)

4 (5.0)

46 (57.5)

57 (71.3)

94 (86.2)

13 (11.9)

66 (60.6)

24 (22.0)

28 (25.7)

1 (0.9)

48 (44.0)

37 (33.9)

1.127

6.416

1.800

11.246

16.809

0.164

3.345

25.684

0.289

0.011

0.180

0.001

< 0.001

0.103

0.067

< 0.001