Table 1 Sample characteristics for both groups
From: Right ventricle speckle tracking in bronchopulmonary dysplasia: one-year follow-up
NO-BPD (n = 22) | BPD (n = 28) | p value | |
|---|---|---|---|
Birth weight (mean; g) | 1412 | 840 | 0.000 |
Small for gestational age (n) | 1 (4.5%) | 6 (21.4%) | 0.088 |
Weeks of pregnancy at birth (median; weeks + days) | 31 + 4 | 26 + 3 | 0.000 |
Multiple gestation (n) | 10 (45.5%) | 13 (46.4%) | 0.945 |
Complete fetal lung maturation (n) | 3 (13.6%) | 4 (14.3%) | 0.526 |
Chorioamnionitis (n) | 1 (4.5%) | 8 (28.6%) | 0.028 |
Advanced neonatal resuscitation (n)a | 0 | 3 (10.7%) | 0.128 |
Apgar 1 (median) | 9 | 6 | 0.000 |
Apgar 5 (median) | 10 | 8 | 0.000 |
Surfactant (n) | 2 (9.1%) | 25 (83.9%) | 0.000 |
More than one surfactant dose (n) | 2 (9.1%) | 14 (58%) | 0.000 |
Significant patent ductus arteriosus which needed treatment (n) | 3 (13.6%) | 13 (46.4%) | 0.014 |
Invasive mechanical ventilation (IMV) (n) | 3 (13.6%) | 18 (64.3%) | 0.000 |
Days of IMV (median) | 0 | 1 | 0.000 |
Nitric-oxide after birth (n) | 0 | 3 (10.7%) | 0.113 |
Days of noninvasive mechanical ventilation (median) | 5 | 35 | 0.000 |
Days of low-flow oxygen therapy before discharge (median) | 0 | 14 | 0.000 |
Necrotizing enterocolitis (n) | 2 (9.1%) | 8 (28.6%) | 0.087 |
Vertical sepsis (n) | 0 | 6 (21.4%) | 0.021 |
Nosocomial sepsis (n) | 2 (9.1%) | 18 (64.3%) | 0.000 |
Days of diuretic treatment (median) | 0 | 27 | 0.000 |
Days of parenteral nutrition (median) | 4 | 14 | 0.000 |
Length of admission (mean) | 43 | 86 | 0.000 |
Home oxygen therapy (n) | 0 | 5 (17.9%) | 0.037 |
Home ventilation therapy (n) | 0 | 0 | |
Bronchiolitis during first year of life (n) | 2 (9%) | 11 (39.2%) | 0.016 |
More than one acute respiratory failure (n) | 1 (4.5%) | 6 (21.4%) | 0.021 |