Table 1 Clinical characteristic of the BPD and non-BPD infants.

From: The CD146-HIF-1α axis regulates epithelial cell migration and alveolar maturation in a mouse model of bronchopulmonary dysplasia

Clinical features

non-BPD (n = 10)

BPD (n = 9)

T/χ2 value

P value

Birth weight (grams)

1.18 ± 0.42

0.99 ± 0.26

1.169a

0.258

Gestational age (days)

206.3 ± 17.89

194.67 ± 12.5

1.626a

0.122

Male gender

5 (50.0%)

5 (55.6%)

1.000

Apgar 1 min

8 ± 0.81

5 ± 2.83

3.218a

0.005

Apgar 5 min

8.5 ± 1.27

6.9 ± 1.69

2.364a

0.030

CPAP (days)

3.8 ± 3.08

19.4 ± 7.94

−5.547a

0.000

Mechanical ventilation (days)

1.8 ± 3.55

25.3 ± 18.89

−3.877a

0.001

Days with oxygen

13.50 ± 9.372

73.3 ± 30.104

−5.988a

0.000

Intraventricular hemorrhage (IVH)

9 (90%)

9 (100%)

1.00

Periventricular leukomalacia (PVL)

0 (0%)

0 (0%)

Necrotizing enterocolitis (NEC)

3 (30.0%)

3 (33.3%)

1.00

Late-onset neonatal sepsis (LOS)

1 (10.0%)

2 (22.2%)

0.582

Surfactant treatment

2 (20.0%)

7 (77.8%)

0.023

Patent ductus arteriosus (PDA)

7 (70%)

8 (88.9%)

0.582

  1. no chi-square value.
  2. P value is calculated by fisher’s exact probability method.
  3. aIs T value.