Table 3

Comparison of neurosensory impairments at 14 years of age in extremely low birthweight (ELBW) and normal birthweight (NBW) children

ELBW (n=79) NBW (n=42) Statistical significance
Cerebral palsy 8  (10.1%)1  (2.4%)χ2 = 2.4, NS
 Mild4 (5.1%)0
 Moderate2 (2.5%)0
 Severe2 (2.5%)1
Blindness5 (6.3%)0 (0%)χ2 = 2.8, NS
Deafness4 (5.1%)0 (0%)χ2 = 2.2, NS
IQ ⩾−1 SD43 (54.4%)35 (83.3%)Mann-Whitney U test; Z = 3.3, p<0.001
 −2 SD to <−1 SD20 (25.3%)6 (14.3%)
 −3 SD to <−2 SD8 (10.1%)0 (0%)
 <−3 SD8 (10.1%1 (2.4%)
  • NS, Not significant; IQ, intelligence quotient.