The total number of days of ventilation and CPAP by gestational age and year group, and as a percentage of the total number of days ventilation or CPAP for babies of all gestational ages admitted to neonatal care
| Gestational age (completed weeks) | |||||
|---|---|---|---|---|---|
| Birth year | 22 n (%) | 23 n (%) | 24 n (%) | 25 n (%) | Total n (%) |
| Ventilation | |||||
| 1991–1995 | 32 (0.1%) | 550 (1.9%) | 1964 (6.9%) | 2682 (9.5%) | 5228 (18.4%) |
| 1996–2000 | 37 (0.1%) | 743 (3.0%) | 1858 (7.5%) | 2697 (10.9%) | 5335 (21.5%) |
| 2001–2005 | 3 (<0.1%) | 810 (3.4%) | 3194 (13.4%) | 3691 (15.5%) | 7698 (32.3%) |
| 2006–2010 | 76 (0.3%) | 1844 (6.7%) | 3037 (11.1%) | 4209 (15.4%) | 9166 (33.5%) |
| Total | 148 (0.1%) | 3947 (3.8%) | 10053 (9.6%) | 13279 (12.7%) | 27427 (26.3%) |
| p Value: test for trend | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 |
| CPAP | |||||
| 1991–1995 | 0 (0%) | 8 (0.1%) | 363 (6.3%) | 354 (6.2%) | 725 (12.7%) |
| 1996–2000 | 0 (0%) | 170 (1.1%) | 1260 (8.3%) | 1682 (11.1%) | 3112 (20.6%) |
| 2001–2005 | 0 (0%) | 499 (1.5%) | 2363 (7.2%) | 4307 (13.2%) | 7169 (22.0%) |
| 2006–2010 | 3 (<0.1%) | 847 (2.1%) | 2580 (6.5%) | 5620 (14.1%) | 9050 (22.8%) |
| Total | 3 (<0.1%) | 1524 (1.6%) | 6566 (7.0%) | 11963 (12.8%) | 20056 (21.5%) |
| p Value: test for trend | 0.099 | <0.001 | <0.001 | <0.001 | <0.001 |
CPAP, continuous positive airway pressure.