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Table 1 Patient characteristics in the neonatal period, shown as means with SDs (in brackets) or as numbers with percentages (%).

From: Development of lung function in very low birth weight infants with or without bronchopulmonary dysplasia: Longitudinal assessment during the first 15 months of corrected age

 

Without BPD

With BPD

p-value

 

N = 26

N = 29

 

Gestational age (weeks)

29.08 (2.12)

26.41 (2.19)

< 0.001

Birth weight (g)

1124.1 (248.3)

815.7 (243.1)

< 0.001

Birth weight < 1,000 g

7 (27%)

25 (86%)

< 0.001

Fetal lung maturation1)

14/19 (74%)

12/17 (71%)

1.000

Surfactant administration1)

18/20 (90%)

18/20 (90%)

1.000

Mechanical ventilation

15 (58%)

29 (100%)

< 0.001

Mechanical ventilation for ≥ 7 d

2 (8%)

16 (55%)

< 0.001

  1. Statistically significant p-values are shown in bold
  2. 1) Total number is reduced because the some data of outpatients were incomplete