Table 1 The perinatal demographic characteristics.
Overall (n = 218) | Survival cases (n = 198) | DQ at 18 months (corrected age) is available (n = 159) | DQ at 3 years is available (n = 144) | IQ at 6 years is available (n = 100) | |
---|---|---|---|---|---|
Females/Males | 107/111 | 97/101 | 79/80 | 67/77 | 55/45 |
Gestational age (weeks) † | 26 (25–27) | 26 (25–27) | 27 (25–28) | 26 (25–27) | 26.5 (25–28) |
Birth weight (g) † | 757 (592–908) | 778 (617–919) | 794 (622–912.5) | 781.5 (630–912) | 800.5 (608–929) |
Apgar score (5 min) † | 6 (4–8) | 6 (4–8) | 6 (4.5–8) | 6 (5–8) | 6 (5–8) |
Singleton | 167 (77%) | 149 (75%) | 116 (73%) | 106 (74%) | 75 (75%) |
Antenatal steroid | 142 (66%) | 133 (68%) | 109 (69%) | 100 (70%) | 65 (65%) |
Pre-labor rupture of membranes | 69 (32%) | 62 (32%) | 48 (31%) | 47 (33%) | 31 (31%) |
Cesarean delivery | 180 (85%) | 169 (86%) | 134 (84%) | 109 (83%) | 87 (87%) |
Hydrocortisone use | 113 (52%) | 109 (55%) | 82 (52%) | 76 (53%) | 55 (55%) |
Dexamethasone use | 5 (2%) | 4 (2%) | 3 (2%) | 2 (1%) | 2 (2%) |
Sepsis | 17 (8%) | 13 (7%) | 8 (5%) | 5 (3%) | 3 (3%) |
NEC (grade ≥II) | 7 (3%) | 4 (2%) | 3 (2%) | 3 (2%) | 1 (1%) |
IVH (grade ≥III) | 18 (9%) | 13 (7%) | 11 (7%) | 10 (7%) | 4 (4%) |
PVL | 9 (4%) | 9 (5%) | 3 (2%) | 2 (1%) | 1 (1%) |
BPD | 128 (64%) | 122 (64%) | 95 (62%) | 86 (61%) | 65 (65%) |
LCC | 57 (28%) | 55 (28%) | 40 (25%) | 37 (26%) | 26 (26%) |
DQ/IQ score † | 88 (77–97) | 83 (70–93) | 83.5 (76–97) |