Table 3.
Cognitive Outcomes | 14-Day AUC (Unadjusted; n = 83) |
14-Day AUC (Adjusted; n = 79) |
42-Day AUC (Unadjusted; n = 83) |
42-Day AUC (Adjusted; n = 79) |
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
β | R2 (%) | P | β | sr2 (%) | P | β | R2 (%) | P | β | sr2 (%) | P | |
General intellectual ability | ||||||||||||
FSIQ | −0.13 | 1.6 | .263 | −0.13 | 1.3 | .221 | −0.13 | 1.7 | .223 | −0.14 | 1.7 | .146 |
Language | ||||||||||||
General language ability | −0.11 | 1.2 | .288 | −0.09 | 0.6 | .354 | −0.11 | 1.3 | .325 | −0.16 | 2.2 | .119 |
Verbal working memory, learning, and memory | ||||||||||||
Immediate verbal memory | 0.02 | 0.02 | .870 | 0.03 | 0.08 | .780 | 0.04 | 0.2 | .687 | −0.03 | 0.1 | .765 |
Working memory | −0.19 | 3.5 | .045 | −0.24 | 4.4 | .025 | −0.17 | 3.1 | .097 | −0.24 | 5.1 | .030 |
Verbal learning | −0.03 | 0.09 | .787 | −0.07 | 0.3 | .604 | −0.03 | 0.09 | .764 | −0.12 | 1.2 | .280 |
Verbal memory | −0.003 | <0.001 | .969 | −0.04 | 0.1 | .690 | −0.02 | 0.03 | .869 | −0.09 | 0.7 | .355 |
Spatial working memory, learning, and memory | ||||||||||||
Immediate spatial memory | 0.003 | <0.001 | .974 | −0.07 | 0.3 | .428 | −0.09 | 0.8 | .326 | −0.21 | 3.7 | .017 |
Spatial learning | −0.10 | 1.0 | .404 | −0.16 | 2.0 | .181 | −0.06 | 0.3 | .567 | −0.18 | 2.7 | .062 |
Spatial memory | −0.14 | 2.0 | .237 | −0.22 | 3.6 | .086 | −0.12 | 1.4 | .255 | −0.24 | 5.1 | .026 |
Attention and executive functioning | ||||||||||||
Selective attention | −0.009 | 0.01 | .931 | 0.006 | <0.001 | .955 | −0.07 | 0.5 | .527 | −0.11 | 1.1 | .333 |
Sustained attention | −0.18 | 3.3 | .147 | −0.12 | 1.2 | .336 | −0.16 | 2.4 | .202 | −0.21 | 3.9 | .104 |
Shifting attention | −0.26 | 6.8 | .010 | −0.31 | 7.2 | .017 | −0.19 | 3.6 | .061 | −0.16 | 2.2 | .175 |
Divided attention | −0.19 | 3.5 | .075 | −0.21 | 3.3 | .122 | −0.14 | 2.0 | .182 | −0.17 | 2.6 | .154 |
Planning | 0.003 | <0.001 | .972 | −0.05 | 0.2 | .648 | −0.08 | 0.6 | .477 | −0.16 | 2.1 | .139 |
Speed of information processing and reaction time | ||||||||||||
Simple reaction timea | −0.03 | 0.07 | .842 | −0.08 | 0.5 | .480 | 0.03 | 0.1 | .794 | 0.01 | 0.02 | .905 |
Complex reaction timea | 0.11 | 1.2 | .238 | 0.05 | 0.2 | .618 | 0.08 | 0.6 | .490 | 0.02 | 0.03 | .878 |
Covariates for adjusted analyses included gestational age, birth weight z score, sex, social risk, marker of illness, and neonatal brain injury.
Some sample sizes are less than the total sample due to missing data.
Bold values denote statistical significance (P < .05).
Task is reverse scored where higher scores signify a slower reaction time.