Table 4

Comparison of infants with intensive care and for whom intensive care was withheld or withdrawn according to social and medical characteristics (restricted to 860 infants born alive between 24 and 26 weeks)

Variable (N (% in column))Intensive care (N=761)Intensive care withheld or withdrawn (N=99)p Value
Social characteristics
Maternal age (years)
 <25 154 (20)17 (18)0.8
 25 to <35440 (58)58 (60)
 ≥35 167 (22)22 (23)
 Missing02
Mother's country of birth
 France531 (76)62 (69)0.18
 Other European country24 (3)4 (4)
 African country122 (17)23 (26)
 Other23 (3)1 (1)
 Missing619
Antenatal medical characteristics
In vitro fertilisation
 Yes44 (6)1 (1)0.048
 Missing296
Multiple pregnancy
 Yes257 (34)23 (23)0.04
Chorioamnionitis
 Yes182 (27)34 (41)0.006
 Missing7716
Main cause of preterm birth
 Preterm labour435 (58)61 (62)0.4
 Preterm premature rupture of membranes219 (29)31 (31)
 Hypertensive disorder or placental abruption41 (5)2 (2)
 Fetal growth restriction54 (7)5 (5)
 Missing120
Delivery within 24 h of mother’s hospitalisation
 Yes224 (30)45 (45)0.0001
 Missing30
Neonatal characteristics
Gestational age (weeks)
 24 107 (14)65 (66)<0.0001
 25 273 (36)23 (23)
 26 381 (50)11 (11)
Birth weight (g)
 <600 65 (9)18 (18)<0.0001
 600 to <750 219 (29)52 (53)
 ≥750 g477 (63)28 (29)
 Missing01
Sex
 Boy399 (52)50 (51)0.7
 Girl362 (48)49 (49)