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TABLE 2:

Clinical characteristics of the MR imaging defined white matter abnormality groups

Normal n (%)Minimal WMA n (%)Moderate WMA n (%)P
No.14108
Postconceptional age at birth.9
 >24–26 weeks3 (21)1 (10)1 (13)
 >26–28 weeks3 (21)2 (20)2 (25)
 >28–30 weeks6 (43)4 (40)2 (25)
 >30 weeks2 (14)3 (30)3 (37)
Male gender3 (21)7 (70)6 (75).02
Birth weight [median (range)]1187 (485–1615)1102 (650–1600)1075 (630–1830).9
Assisted delivery*6 (43)3 (30)5 (63).4
5-min Apgar score [median (range)]7 (1–9)7 (1–10)4.5 (0–7).3
Prenatal betamethasone10 (71)5 (50)6 (75).5
Chorioamnionitis1 (7)001.0
Chronic lung disease7 (50)3 (30)3 (38).9
  • Note.—WMA indicates white matter abnormality.

  • * Cesarean section or vacuum extraction.