Table 4.
Domain/Measure | Parameter Estimate | Parameter 95% CI | P Value from GLM |
Executive function | |||
Composite score | 0.007 | −0.059 to 0.074 | .828 |
Wisconsin Card Sort Test | |||
Total errors | −0.005 | −0.016 to 0.005 | .331 |
Perseverative errors | 0.006 | −0.014 to 0.026 | .538 |
Nonperseverative errors | −0.010 | −0.023 to 0.003 | .132 |
Trail Making Test | |||
Trails A time | −0.0001 | −0.0003 to 0.0001 | .548 |
Trails B time | −0.00002 | −0.00011 to 0.00007 | .672 |
Trails B regressed on Trails A | 0.003 | −0.242 to 0.247 | .983 |
Verbal Fluency Test | |||
Letter fluency (total correct) | −0.003 | −0.009 to 0.003 | .362 |
Category fluency (total correct) | 0.004 | −0.001 to 0.009 | .106 |
Ruff Figural Fluency Test | |||
Ruff Figural Fluency (total correct) | −0.0003 | −0.0027 to 0.0022 | .832 |
Working memory | |||
Composite score | 0.026 | −0.026 to 0.078 | .323 |
WAIS Digit Span | |||
Forward last correct | 0.001 | −0.018 to 0.020 | .901 |
Backward last correct | 0.016b | −0.003 to 0.034 | .099 |
Letter-Number Sequencing (LNS) | |||
LNS scaled score | 0.003 | −0.007 to 0.013 | .600 |
Auditory N-Back | |||
0-Back d-prime | −0.000 | −0.001 to 0.001 | .998 |
2-Back d-prime | 0.000 | −0.003 to 0.003 | .831 |
Neuromotor function | |||
Grooved Peg Board dominant hand time | −0.00002 | −0.00006 to 0.00002 | .398 |
Finger Tap total taps for trials 1–3 | 0.0001 | −0.0020 to 0.0022 | .906 |
WAIS | |||
Full-scale IQ Estimate | 0.228 | −0.058 to 0.514 | .119 |
WAIS info total scaled score | 0.106b | −0.006 to 0.218 | .063 |
WAIS picture completion total scaled score | 0.017 | −0.083 to 0.117 | .738 |
Verbal memory | |||
Composite score | 0.006 | −0.032 to 0.045 | .748 |
CVLTc trial 5 | 0.006 | −0.015 to 0.027 | .574 |
CVLT total learning slope trials 1–5 | 0.000 | −0.021 to 0.022 | .976 |
Note: Bolded values are statistically significant at the P = .05 level; GLM, generalized linear models; CVLT, California Verbal Learning Test; WAIS III, Wechsler Adult Intelligence Scale III.
All adjusted for gestational age.
Parameter indicates worse performance for lower birth weight.
All CVLT scores are standard scores.