Table 1 Demographic and main clinical characteristics
AB success N = 251 | AB failure N = 32 | OR (95% CI) or p-value | |
|---|---|---|---|
Gestational age (weeks) - mean (SD) | 31.7 (5.1) | 28.8 (4.4) | 0.0034 |
>36 weeks - n (%) | 55 (21.9) | 2 (6.3) | 0.24 (0.06-1.03) |
<28 weeks - n (%) | 61 (24.3) | 14 (43.8) | 2.42 (1.14-5.16) |
<26 weeks - n (%) | 35 (13.9) | 10 (31.3) | 2.81 (1.23-6.42) |
Birthweight (g) - mean (SD) | 1913 (1086) | 1350 (978) | 0.0065 |
<1501 g - n (%) | 122 (48.6) | 23 (71.9) | 2.70 (1.20-6.07) |
<1001 g - n (%) | 59 (23.5) | 16 (50.0) | 3.25 (1.53-6.90) |
<751 g - n (%) | 23 (9.2) | 11 (34.4) | 5.19 (2.23-12.10) |
M/F sex - n | 143/108 | 20/12 | 1.26 (0.59-2.69) |
Apgar score at 1 min - mean (SD) | 5.3 (2.1) | 4.3 (1.9) | 0.0114 |
Apgar score at 5 min - mean (SD) | 6.5 (1.5) | 5.9 (1.5) | 0.0422 |
Ventilated - n (%) | 187 (74.5) | 28 (87.5) | 2.40 (0.81-7.09) |
Surfactant - n (%) | 141 (56.2) | 28 (87.5) | 5.46 (1.86-16.03) |
Cesarean section - n (%) | 142 (56.6) | 15 (46.9) | 0.68 (0.32-1.42) |
Multiple pregnancies - n (%) | 50 (19.9) | 7 (21.9) | 1.13 (0.46-2.75) |
Chorioamnionitis - n (%) | 40 (15.9) | 11 (34.4) | 2.76 (1.24-6.17) |
PROM >18 h - n (%) | 46 (18.3) | 7 (21.9) | 1.25 (0.51-3.06) |
Prenatal glycocorticoids (full course) - n (%) | 106 (42.2) | 8 (25.0) | 0.46 (0.20-1.05) |
AB therapy during pregnancy | 61 (24.3) | 4 (12.5) | 0.45 (0.15-1.32) |
AB therapy during delivery | 91 (36.3) | 6 (18.8) | 0.41 (0.16-1.02) |
Proven EOS - n (%) | 4 (1.6) | 10 (31.3) | 28.07 (8.13-96.88) |
Early neonatal mortality - n (%) | 10 (4.0) | 14 (43.8) | 18.74 (7.31-48.10) |