TABLE 2.

IQ and Neuropsychological Test Results for the ELBW Infant Cohort at Age 5

All ELBW InfantsAGA, GW <27SGA, GW <27
WPPSI-R172/203 (85%)68/80 (85%)20/23 (87%)
    Full-scale IQ96 ± 19*96 ± 2089 ± 16
    Verbal IQ99 ± 2097 ± 2391 ± 16
    Performance IQ94 ± 18*94 ± 1994 ± 20
    Retarded, not tested9/203 (4%)3/80 (4%)1/23 (4%)
NEPSY166/203 (82%)63/80 (79%)20/23 (87%)
    Attention8.6 ± 3.08.4 ± 3.07.6 ± 2.0
    Language7.7 ± 2.37.7 ± 1.96.5 ± 2.2
    Sensorimotor7.1 ± 2.47.0 ± 2.36.3 ± 2.2
    Visuospatial7.1 ± 2.66.9 ± 2.76.4 ± 2.4
    Verbal memory8.4 ± 2.98.4 ± 3.06.5 ± 2.2
  • Data are means ± SD.

  • * P < .05 ELBW infants versus normal population WPPSI-R mean 100 ± 15 SD.

  • P < .05 ELBW infants versus normal population NEPSY mean 10 ± 3 SD.

  • P < .05 SGA versus AGA.