| 1991-92 Birth-cohort | 1982-85 Birth-cohort | ||
|---|---|---|---|
| SB-DLCO* | Preterm | 4.3 (4.0, 4.6) | 8.1 (7.5, 8.7) |
| Control | 5.3 (5.1, 5.5) | 9.0 (8.4, 9.6) | |
| KCO** | Preterm | 1.63 (1.55, 1.71) | 1.51 (1.45, 1.58) |
| Control | 1.79 (1.71, 1.87) | 1.61 (1.54, 1.69) |
Figures are group mean values (95% confidence intervals). *Single-breath DLCO, **SB-DLCO/effective alveolar volume.