TABLE 5.

Neurosensory Outcomes at 20 Months of Corrected Age

Birth Weight
500–749 g750–999 gTotal (500–999 g)
Period I (n = 52)Period II (n = 145)P ValuePeriod I (n = 162)Period II (n = 272)P ValuePeriod I (n = 214)Period II (n = 417)P Value
Neurosensory abnormality,* no. (%)12 (23)39 (27).72323 (14)63 (23).03235 (16)102 (25).025
Cerebral palsy, no. (%)6 (12)18 (12)1.00011 (7)41 (15).01617 (8)59 (14).033
Blindness, no. (%)1 (2)1 (1).4595 (3)2 (1).1086 (3)3 (1).068
Deafness, no. (%)2 (4)14 (10).2464 (3)16 (6).1606 (3)30 (7).038
  • * Cerebral palsy, persistent hypotonia/hypertonia, shunt-dependent hydrocephalus, blindness, or deafness.

  • Hemiplegia, diplegia, or quadriplegia.

  • Unilateral or bilateral blindness or deafness.