Table 1.
Comparison of baseline characteristics of initial neonatal cohort and follow-up cohort.
| Initial Cohort (n = 1190) | Follow-Up Cohort (n = 347) | p-Value | |
|---|---|---|---|
| Gestational age, weeks + days, mean (SD) | 27 + 4 (1 + 4) | 27 + 5 (1 + 4)) | 0.03 * |
| Gender, female, % | 47% | 45% | 0.67 |
| Delivery mode, cesarean, % | 52% | 48% | 0.23 |
| APGAR score 1 min, median [IQR]) | 6 [4,5,6,7] | 6 [3,4,5,6,7] | 0.93 |
| APGAR score 5 min, median [IQR]) | 8 [6,7,8,9] | 8 [6,7,8,9] | 0.50 |
| Multiplicity (twin or triplet), % | 32% | 27% | 0.02 * |
| Birth weight, gram, mean (SD) | 1025 (271) | 1067 (268) | 0.01 * |
| Birthweight, Z-score, mean (SD) | 0.04 (1.01) | 0.13 (0.99) | 0.16 |
| Late-onset sepsis in first 28 days of life, % | 34% | 27% | 0.02 * |
| Necrotizing enterocolitis, % | 8% | 4% | 0.01 * |
* p-value < 0.05; IQR, interquartile range; SD, standard deviation.