| Variable | Present (n = 46) | Absent (n = 110) | p-valueα | ||
| n | % | N | % | ||
| Chorioamnionitis |
|
|
|
|
|
| Yes | 3 | 6.5 | 8 | 7.3 | 1.000 |
| No | 43 | 93.5 | 102 | 92.7 |
|
| Antenatal corticoids |
|
|
|
|
|
| Yes | 11 | 23.9 | 35 | 31.8 | 0.323 |
| No | 35 | 76.1 | 75 | 68.2 |
|
| Gestational age (weeks and days) |
|
|
|
|
|
| 25 w to 27 w 6 d | 17 | 37.0 | 4 | 3.6 | <0.001 |
| 28 w to 30 w 6 d | 12 | 26.1 | 20 | 18.2 |
|
| 31 w to 33 w 6 d | 17 | 37.0 | 86 | 78.2 |
|
| Weight (g) |
|
|
|
|
|
| 500 - 999 g | 20 | 43.5 | 7 | 6.4 | <0.001 |
| 1000 - 1500 g | 13 | 28.3 | 48 | 43.6 |
|
| >1500 g | 13 | 28.3 | 55 | 50.0 |
|
| Apgar score in 1st min |
|
|
|
|
|
| 0 - 3 | 11 | 23.9 | 7 | 6.4 | 0.003 |
| 4 - 6 | 17 | 37.0 | 32 | 29.1 |
|
| 7 - 10 | 15 | 32.6 | 65 | 59.1 |
|
| No data | 3 | 6.5 | 6 | 5.5 |
|
| Apgar score in 5th min |
|
|
|
|
|
| 0 - 3 | 0 | 0 | 0 | 0 |
|
| 4 - 6 | 13 | 28.3 | 4 | 3.6 | <0.001 |
| 7 - 10 | 30 | 65.2 | 101 | 91.8 |
|
| No data | 3 | 6.5 | 5 | 4.5 |
|
| Reanimation in delivery room |
|
|
|
|
|
| Yes | 29 | 63.0 | 29 | 26.4 | <0.001 |
| No | 17 | 37.0 | 81 | 73.6 |
|
| Surfactant in delivery room |
|
|
|
|
|
| Yes | 13 | 28.3 | 17 | 15.5 | 0.064 |
| No | 33 | 71.7 | 93 | 84.5 |
|
| Transferred from another hospital |
|
|
|
|
|
| Sim | 17 | 37.0 | 34 | 30.9 | 0.463 |
| Não | 29 | 63.0 | 76 | 69.1 |
|