Table 1.
Demographic features of preterm infants with PV–IVH.
| Variables | Deterioration of PV–IVH n = 42 |
No deterioration of PV–IVH n = 472 |
X2 | P |
|---|---|---|---|---|
| Gestational age (weeks, mean ± SD) | 28.2 ± 1.3 | 29.7 ± 1.4 | t = 6.507 | 0.00 |
| Birth weight (g, mean ± SD) | 1,114.0 ± 234.6 | 1,361.2 ± 278.4 | t = 5.579 | 0.00 |
| Male (n, %) | 21 (50.0) | 248 (52.5) | 0.100 | 0.75 |
| History of fetal abnormalities (n, %) | 7 (16.7) | 97 (20.6) | 0.361 | 0.55 |
| Primigravidity (n, %) | 13 (31.0) | 143 (30.3) | 0.008 | 0.93 |
| Primiparity (n, %) | 18 (42.9) | 263 (55.7) | 7.007 | 0.03 |
| Multiple gestations (n, %) | 19 (45.2) | 154 (32.6) | 2.747 | 0.10 |
| Vaginal delivery (n, %) | 29 (69.0) | 293 (62.1) | 0.801 | 0.37 |
| In vitro fertilization (n, %) | 2 (4.8) | 29 (6.1) | 0.130 | 0.72 |
| Gestational hypertension (n, %) | 5 (11.9) | 21 (4.4) | N | 0.05 |
| Intrauterine infection (n, %) | 15 (35.7) | 105 (22.2) | 3.909 | 0.04 |
| Premature rupture of membranes (n, %) | 8 (19.0) | 158 (33.5) | 3.671 | 0.06 |
| Placental abnormality (n, %) | 11 (26.2) | 125 (26.5) | 0.002 | 0.97 |
| Intrahepatic cholestasis of pregnancy (n, %) | 9 (21.4) | 72 (15.3) | 1.108 | 0.29 |
| Anemia (n, %) | 15 (35.7) | 128 (27.1) | 1.419 | 0.23 |
| Lower genital tract infections (n, %) | 30 (71.4) | 186 (39.4) | 16.232 | 0.00 |
| Amniotic fluid contamination (n, %) | 7 (16.7) | 53 (11.2) | N | 0.31 |
| Abnormal fetal position (n, %) | 0 (0.0) | 9 (1.9) | 0.815 | 0.37 |
| Fetal intrauterine distress (n, %) | 8 (19.0) | 55 (11.7) | 1.961 | 0.16 |
PV–IVH periventricular–intraventricular hemorrhage.