Skip to main content

Table 1 Clinical characteristics by bronchopulmonary dysplasia status

From: Neonatal hematological parameters and the risk of moderate-severe bronchopulmonary dysplasia in extremely premature infants

Variable

Infants without BPD (n = 55)

Infants with moderate or severe BPD (n = 60)

P value

maternal age, yr

32 (29–36)

32 (29–34)

0.406

conception by ART

4 (7%)

16 (27%)

0.006

GDM

3 (6%)

4 (7%)

0.786

gestational hypertension

9 (16%)

3 (5%)

0.046

PPROM

13 (24%)

24 (40%)

0.061

chorioamnionitis

6 (11%)

2 (3%)

0.015

Intubation at resuscitation

25 (45%)

53 (88%)

< 0.001

antenatal steroid treatment

37 (67%)

49 (82%)

0.076

cesarean section delivery

25 (46%)

10 (17%)

0.001

gestational age at birth, wk

27.3 (26.1–28.6)

25.8 (24.5–26.8)

< 0.001

birth weight, gr

890 (740–980)

770 (687–910)

0.039

SGA

18 (33%)

5 (8%)

0.001

male

26 (47%)

39 (65%)

0.055

NRDS

43 (78%)

54 (90%)

0.081

Mechanical ventilation

22 (40%)

51 (85%)

< 0.001

(Suspected) Early-onset neonatal sepsis

9 (16%)

26 (43%)

0.002

Apgar score at 1 min

7 (5–9)

5 (5–8)

0.041

Apgar score at 5 min

10 (9–10)

10 (8–10)

0.133

surfactant treatment

32 (59%)

53 (88%)

< 0.001

PDA

10 (18%)

35 (58%)

< 0.001

IVH grade 3 or 4

5 (9%)

9 (15%)

0.333

NEC

2 (4%)

3 (5%)

0.541

pneumothorax

1 (2%)

1 (2%)

0.950

pulmonary hemorrhage

2 (4%)

4 (7%)

0.681

  1. Data were displayed as median (interquartile range) or number (percentage). ART assisted reproductive technology, GDM gestational diabetes mellitus, PPROM preterm premature rupture of the membranes, SGA small for gestational age, NRDS neonatal respiratory distress syndrome, PDA patent ductus arteriosus, IVH intraventricular hemorrhage, NEC necrotizing enterocolitis