Table 1 The perinatal demographic characteristics.

From: Total hydrocortisone dosage in extremely low birth weight infants and neurodevelopment up to school age

 

Overall (n = 218)

Survival cases (n = 198)

DQ at 18 months (corrected age) is available (n = 159)

DQ at 3 years is available (n = 144)

IQ at 6 years is available (n = 100)

Females/Males

107/111

97/101

79/80

67/77

55/45

Gestational age (weeks) †

26 (25–27)

26 (25–27)

27 (25–28)

26 (25–27)

26.5 (25–28)

Birth weight (g) †

757 (592–908)

778 (617–919)

794 (622–912.5)

781.5 (630–912)

800.5 (608–929)

Apgar score (5 min) †

6 (4–8)

6 (4–8)

6 (4.5–8)

6 (5–8)

6 (5–8)

Singleton

167 (77%)

149 (75%)

116 (73%)

106 (74%)

75 (75%)

Antenatal steroid

142 (66%)

133 (68%)

109 (69%)

100 (70%)

65 (65%)

Pre-labor rupture of membranes

69 (32%)

62 (32%)

48 (31%)

47 (33%)

31 (31%)

Cesarean delivery

180 (85%)

169 (86%)

134 (84%)

109 (83%)

87 (87%)

Hydrocortisone use

113 (52%)

109 (55%)

82 (52%)

76 (53%)

55 (55%)

Dexamethasone use

5 (2%)

4 (2%)

3 (2%)

2 (1%)

2 (2%)

Sepsis

17 (8%)

13 (7%)

8 (5%)

5 (3%)

3 (3%)

NEC (grade ≥II)

7 (3%)

4 (2%)

3 (2%)

3 (2%)

1 (1%)

IVH (grade ≥III)

18 (9%)

13 (7%)

11 (7%)

10 (7%)

4 (4%)

PVL

9 (4%)

9 (5%)

3 (2%)

2 (1%)

1 (1%)

BPD

128 (64%)

122 (64%)

95 (62%)

86 (61%)

65 (65%)

LCC

57 (28%)

55 (28%)

40 (25%)

37 (26%)

26 (26%)

DQ/IQ score †

  

88 (77–97)

83 (70–93)

83.5 (76–97)

  1. DQdevelopmental quotient,IQintelligence quotient, IVH intraventricular hemorrhage, PVL periventricular leukomalacia; BPD bronchopulmonary dysplasia, NEC necrotizing enterocolitis, LCC late-onset circulatory collapse.
  2. †Median (IQR).