Table 1.
Characteristics of infants undergoing or not a 24 months neuro-developmental follow-up.
|
Patients with 24 months follow-up
N = 502 |
Patients without 24 months follow-up
N = 430 |
Missing cases | p | |
|---|---|---|---|---|
| Birth weight, median (IQR), g | 1,074.5 (870–1,341) | 1,270 (1,050–1,415) | – | <0.001 |
| Gestational age, median (IQR), wk | 29.3 (27.4–31) | 30.4 (28.9–32.3) | – | <0.001 |
| Outborn, n (%) | 19 (3.8) | 32 (7.4) | – | 0.014 |
| Ethnicity (Not-Hispanic), n (%) | 482 (53.2) | 424 (46.8) | 4 | 0.008 |
| Multiple gestation, n (%) | 172 (34.3) | 194 (45.1) | – | 0.001 |
| Apgar 1st min, median (IQR) | 7 (5–8) | 7 (5–8) | – | 0.656 |
| Apgar 5th min, median (IQR) | 9 (8–9) | 9 (8–9) | – | 0.115 |
| Cesarean delivery, n (%) | 94 (18.7) | 60 (13.9) | – | 0.051 |
| Male gender, n (%) | 251 (50) | 204 (47.4) | – | 0.436 |
| Prenatal steroids exposure, n (%) | 458 (91.9) | 387 (90.4) | 6 | 0.406 |
| Chorioamnionitis, n (%) | 99 (17.8) | 58 (13.7) | 9 | 0.015 |
| Sepsis, n (%) | 54 (10.8) | 37 (8.6) | – | 0.270 |
| Mechanical ventilation, n (%) | 190 (37.9) | 143 (33.3) | – | 0.145 |
| Periventricular-intraventricular Hemorrhage, n (%) | 73 (14.6) | 50 (11.7) | 4 | 0.191 |
| Periventricular leukomalacia, n(%) | 12 (2.4) | 7 (1.6) | 4 | 0.412 |
| PDA pharmacological treatment, n (%) | 130 (25.9) | 69 (16.1) | – | <0.001 |
| PDA surgical treatment for, n (%) | 177 (35.3) | 98 (22.8) | 28 | <0.001 |
| Necrotizing enterocolitis, n (%) | 18 (3.6) | 23 (5.4) | – | 0.191 |
| ROP surgical treatment, n (%) | 14 (2.8) | 11 (2.6) | 1 | 0.833 |
| Human milk feeding at discharge, n (%) | 342 (68.1) | 257 (59.8) | – | 0.008 |
PDA, patent ductus arteriosus; ROP, retinopathy of the prematurity.
The values in bold are statistically significant (p < 0.05).