Table 2.
Childhood best spirometry results in BPD subjects with and without history of tracheostomy.
| tBPD | sBPD | β | 95% CI | P-value | |||
|---|---|---|---|---|---|---|---|
| n = 23 | n = 50 | ||||||
| Mean FEV1 pp (SD)a | 70.7 | (23.6) | 85.3 | (14.7) | −14.16 | (−23.64, −4.68) | 0.01b |
| Mean FVC pp (SD) a,c | 94.5 | (27.0) | 107.0 | (16.8) | −13.58 | (−27.96, 0.80) | 0.06 |
| Mean FEV1/FVC (SD) a,c | 72.2 | (14.1) | 81.9 | (8.9) | −8.23 | (−15.72, −0.74) | 0.03b |
BPD bronchopulmonary dysplasia, tBPD BPD with history of tracheostomy, sBPD severe BPD without history of tracheostomy, FEV1 forced expiratory volume in one second, FVC forced vital capacity, pp percent predicted.
a Controlled for gestational age and multiple gestations.
b P < 0.05.
b Only includes subjects with acceptable FVC.