| Variables | Frequency | Percentage (%) |
| Age at delivery (Weeks of amenorrhea) |
|
|
| <28 | 7 | 2.9 |
| [28 - 32[ | 18 | 7.3 |
| [32 - 35[ | 36 | 14.7 |
| [35 - 37[ | 33 | 13.5 |
| ≥37 | 151 | 61.6 |
| Term at delivery |
|
|
| Prematurity (<37 WA) | 94 | 38.4 |
| At term (≥37 WA) | 151 | 61.6 |
| Gender |
|
|
| Male | 136 | 55.5 |
| Female | 109 | 44.5 |
| Birth weight (grams) |
|
|
| <1000 | 4 | 1.6 |
| [1000 - 1500[ | 11 | 4.5 |
| [1500 - 2000[ | 29 | 11.8 |
| [2000 - 2500[ | 39 | 15.9 |
| [2500 - 4000[ | 153 | 62.4 |
| ≥4000 | 9 | 3.7 |