Gestational age (completed weeks) | |||||
---|---|---|---|---|---|
Birth Year | 22 n (%) | 23 n (%) | 24 n (%) | 25 n (%) | Total n (%) |
Ventilation | |||||
1991-1995 | 32 100% | 417 83.4% | 695 35.4% | 814 30.4% | 1958 37.5% |
1996-2000 | 37 100% | 306 41.2% | 572 30.8% | 615 22.8% | 1530 28.7% |
2001-2005 | 3 100% | 445 54.9% | 1055 33.0% | 1061 28.7% | 2564 33.3% |
2006-2010 | 76 100% | 1135 61.6% | 1251 40.2% | 1042 24.8% | 3504 38.2% |
Total | 148 100% | 2303 58.3% | 3573 35.5% | 3532 26.6% | 9556 34.8% |
p Value: test for trend CPAP | - | 0.56 | <0.001 | 0.02 | 0.004 |
1991-1995 | 0 0% | 2 25% | 125 34.4% | 63 17.8% | 190 26.2% |
1996-2000 | 0 0% | 1 0.6% | 128 10.2% | 67 4.0% | 196 6.3% |
2001-2005 | 0 0% | 41 9.1% | 144 6.1% | 447 10.4% | 632 8.8% |
2006-2010 | 3 100% | 231 27.3% | 322 12.5% | 349 6.2% | 905 10.0% |
Total | 3 100% | 275 17.7% | 719 11.0% | 926 7.7% | 1923 9.6% |
p Value: test for trend | - | <0.001 | <0.001 | <0.001 | 0.009 |
CPAP, continuous positive airway pressure.