TABLE 1

Antenatal Characteristics of Mothers (N = 634)

CharacteristicValue
Maternal age, y
    Median (no. reporting)27.5 (630)
    Interquartile range23–32
    Range15–44
Maternal birth in France, % (n/N reporting)93.9 (542/577)
Educational level beyond high school, % (n/N reporting)23.8 (129/543)
Singleton pregnancy, % (n/N reporting)75.9 (481/634)
Primiparous, % (n/N reporting)46.7 (294/630)
Complications of pregnancy, % (n/N reporting)
    Hypertension19.6 (124/634)
    Chorioamnionitis9.1 (55/548)
    Premature rupture of membranes33.2 (209/630)
    Third-stage hemorrhage18.1 (115/634)
Cesarean section, % (n/N reporting)55.3 (349/631)
Antenatal steroids, % (n/N reporting)72.9 (449/616)
Level III delivery unit, % (n/N reporting)
    22–25 wk79.2 (42/53)
    26–27 wk84.7 (72/85)
    28–29 wk76.8 (96/125)
    30–31 wk64.0 (114/178)
    32 wk49.0 (94/193)