TABLE 1

Perinatal and Sociodemographic Characteristics of the EP/EBLW and T/NBW Groups

CharacteristicEP/ELBW (n = 189)T/NBW (n = 173)P
Perinatal characteristics
 Male100 (52.9)92 (53.2).96
 GA, mean ± SD, completed wk26.5 ± 2.039.3 ± 1.1<.001
 Birth weight, mean ± SD, g833 ± 1643506 ± 1455<.001
 Birth weight less than –2 SDs34 (18.0)0 (0)<.001
 Age at evaluation, mean ± SD, y8.45 ± 0.41)8.50 ± 0.39).10
 Antenatal corticosteroids166 (87.8)2 (1.2)<.001
 Surfactant154 (81.5)1 (0.6)<.001
 Postnatal corticosteroids70 (37.0)0 (0)<.001
 Oxygen dependency at 36 wk72 (38.1)0 (0).<.001
 Cystic periventricular leukomalacia6 (3.2)0 (0).02
 Grade 3/4 intraventricular hemorrhage7 (3.7)0 (0).03
Sociodemographic characteristics
 English only spoken at home150/186 (80.6)147/171 (86.0).18
 Intact family structure131/169 (77.5)139/165 (84.2).12
 Married mother136/169 (80.5)128/159 (80.5).99
 Primary income earner skilled/semiskilled96/171 (56.1)125/161 (77.6)<.001
 Maternal education (≥12 y of schooling)94/189 (49.7)116/172 (67.4).001
 Paternal education (≥12 y of schooling)71/177 (40.1)99/163 (60.7)<.001
  • Data are presented as number (percent) unless otherwise indicated.