Mean height, pulmonary function, and FEV1 slope (percentage predicted) from age 18 to 22 years by birth cohort
| Birth cohort | |||||
|---|---|---|---|---|---|
| 1960–4 | 1965–9 | 1970–4 | 1975–9 | 1980–4 | |
| Patients (n) | 17 | 28 | 62 | 113 | 98 |
| Measurements (n) | 40 | 76 | 167 | 349 | 314 |
| Mean height at age 18 (cm) | n/a | n/a | 167.1 | 167.2 | 167.4 |
| Mean FEV1 at 22 years (%) | 45.96% | 59.75% | 53.47% | 56.77% | 63.68% |
| FEV1 % predicted slope | −2.49% | −1.99% | −2.2% | −1.65% | −0.65% |
| Mean FVC at 22 years (%) | 68.13% | 78.02% | 69.85% | 75.18% | 81.8% |
| FVC % predicted slope | −2.1% | −1.35% | −1.86% | −1.34% | −0.64% |