Table 4

Lung function variables in preterm children with and without BPD

Lung function variableBPD (n = 39)No BPD (n = 130)δ4-150 95% CI4-151
FVC98.2  (14.4)101.4  (12.0)−3.2−7.7  to  1.3
FEV1 88.5 (18.2)96.7 (12.6)−8.2−13.2 to  −3.1
FEV1/FVC (%)78.6 (11.1)84.2 (8.8)−5.5−8.9 to  −2.1
V′EMAX75% 85.6 (24.9)96.4 (21.4)−10.7−19.1 to  −2.4
V′EMAX50% 83.6 (36.0)95.7 (25.6)−12.0−22.6 to −1.5
V′EMAX25% 77.1 (36.1)94.8 (35.3)−17.7−30.7 to  −4.7
FEF25–75% 71.3 (30.9)83.5 (23.8)−12.2−21.4 to  −3.0
RV115.8 (53.0)112.8 (37.6)3.0−12.2 to  18.3
TLC98.9(14.7)99.3 (14.2)−0.4−5.7 to  4.9
RV/TLC (%)27.4 (10.3)27.5 (7.6)−0.1−3.2 to  2.9
  • Data expressed as mean (SD), and are % predicted for height, age, and gender, unless otherwise specified.

  • 4-150 Difference between groups.

  • 4-151 95% confidence interval for difference between groups.