Perinatal characteristics of 18 preterm twins with cystic PVL compared with their 18 co-twins without cystic PVL
| Characteristic | PVL group | Controls | p Value | Relative risk (95% CI) |
|---|---|---|---|---|
| Data are presented as n (%) or mean (SD). | ||||
| ns, Not significant; nc, not calculated; SGA, small for gestational age; PROM, premature rupture of the membranes; PVL, periventricular leucomalacia. | ||||
| Birth weight | 1459 (550) | 1290 (507) | ns | – |
| SGA | 0 | 3(17%) | nc | – |
| Male | 10 (56%) | 12 (67%) | nc | – |
| 1st twin | 11 (61%) | 7 (39%) | 0.1 | 1.571 (0.791 to 3.122) |
| 2nd twin | 7 (39%) | 11(61%) | – | – |
| Breech presentation | 4 (22%) | 7(39%) | ns | – |
| Caesarean section | 10 (56%) | 10 (56%) | nc | – |
| Risks during labour | 2 (11%) | 5 (28%) | ns | – |
| PROM | 4 (22%) | 6 (33%) | ns | – |
| Hours (PROM–birth) | 61 (72) | 25 (19) | ns | – |
| Fetal distress | 2/13 (15%) | 8/15 (53%) | 0.019 | 2.057 (1.067 to 3.968) |
| Apgar 1 minute | 6.6 (2.4) | 5.9 (2.9) | ns | – |
| Apgar 5 minutes | 8.8 (1.1) | 8.3 (1.4) | ns | – |
| Apgar 10 minutes | 9.4 (0.7) | 8.9 (1.3) | ns | – |
| Umbilical artery pH | 7.30 (0.08) | 7.26 (0.11) | ns | – |
| Capillary pH | 7.19 (0.05) | 7.21 (0.07) | ns | – |