TABLE 2

Perinatal and Early Neonatal Characteristics

Birth Weight Category<500 g (n = 84)501–750 g (n = 409)751–1000 g (n = 486)1001–1250 g (n = 562)1251–1500 g (n = 604)All Infants (n = 2145)
Maternal hypertension31 (21–41)14 (11–17)18 (15–21)17 (14–20)18 (15–21)18 (16–20)
Maternal DM/GDM0 (0–0)1 (0–2)0 (0–1)2 (1–3)1 (0–2)1 (0–1)
PROM33 (23–43)31 (27–35)31 (27–35)28 (24–32)28 (24–32)30 (28–32)
Chorioamnionitis27 (18–36)27 (23–31)24 (20–28)16 (13–19)12 (9–15)19 (17–21)
Histologic chorioamnionitis27 (18–36)36 (31–41)28 (24–32)20 (17–23)16 (13–19)24 (22–26)
ANS43 (32–54)41 (36–46)48 (44–52)41 (37–45)34 (30–38)41 (39–43)
Cesarean section66 (56–76)63 (58–68)75 (71–79)73 (69–77)74 (71–77)72 (71–74)
Resuscitation with endotracheal intubation96 (92–100)90 (87–93)68 (64–72)45 (41–49)26 (23–29)56 (54–58)
  • Data are expressed as percentage of n in the category with 95% CI in parenthesis.