Table 3.

Proportion of ELBW and Control Teens Performing Within and Below the *Normal Range on Psychometric Measures

Psychometric MeasuresBirth Weight Groups
<750 g
%
750 to 1000 g
%
Term
%
WISC-R DQ
 <7022.511.8.0
 70–8425.011.88.1
 ≥8552.576.491.9
 OR <8510.33.51.0
 (95% CI)(4.2–25.3)(1.6–7.7)
WRAT-R Reading
 <7038.218.42.4
 70–8420.618.48.9
 ≥8541.263.288.7
 OR <8511.24.61.0
 (95% CI)(4.7–27.1)(2.3–9.1)
Spelling
 <7041.219.42.4
 70–8420.622.38.9
 ≥8538.258.388.7
 OR <8512.75.61.0
 (95% CI)(5.2–30.8)(2.9–11.1)
Arithmetic
 <7050.032.04.8
 70–8426.535.924.2
 ≥8523.532.171.0
 OR <857.95.21.0
 (95% CI)(3.3–19)(2.9–9.1)
  • * ≥85 represent scores within the normal range.