Table 2.
Characteristics of very preterm singletons in Trent and Ile-de-France
| |
Very preterm infants |
||
|---|---|---|---|
| Trent | Ile-de-France | p | |
|
Characteristics of very preterm population | |||
| Maternal age [mean (SD)] |
27.4 (7.1) |
30.3 (6.0) |
(<.001) |
| Gestational age [mean (SD)] |
28.3 (2.4) |
28.2 (2.5) |
(0.8) |
| Birthweight [mean (SD)] |
1162 (407) |
1116 (394.5) |
(1.0) |
| Sex [% male] |
52.8 |
52.0 |
(0.8) |
|
Characteristics of very preterm pregnancy and delivery | |||
| Hypertension during pregnancya |
20.6 |
24.9 |
(0.07) |
| Antepartum haemorrhage without hypertension |
38.8 |
15.9 |
(<.001) |
| Premature rupture of membranes without hypertension or antepartum haemorrhage |
13.3 |
19.7 |
(0.002) |
| Preterm labour without hypertension, haemorrhage or PPROM |
10.9 |
14.9 |
(0.03) |
| Caesarean section before labour |
40.9 |
44.3 |
(0.2) |
|
Very preterm infant outcomes | |||
| In-hospital mortalityb |
20.0 |
24.3 |
(0.06) |
| Bronchopulmonary dysplasiac,d |
22.0 |
15.8 |
(0.01) |
| Brain lesions c,e |
7.6 |
11.4 |
(0.03) |
| At least one day on ventilator c |
60.9 |
73.0 |
(<.001) |
| Long hospital stayc,f |
44.1 |
63.3 |
(<.001) |
| Breast milk at dischargec | 35.9 | 26.9 | (0.002) |
a) Hypertension during pregnancy: pregnancy-induced hypertension, pre-eclampsia, eclampsia and HELLP syndrome.
b) In-hospital mortality includes death during labour, delivery or hospitalization after birth.
c) Includes only infants discharge alive.
d) Oxygen dependence or ventilation, including nasal continuous positive airway pressure, at 36 weeks of gestational age.
e) Brain lesions includes intraventricular haemorrhage and periventricular leukomalacia.
f) Long hospital stay: longer hospital stay than 75th percentile for gestational age.