Table 2.
Performance by Exposure Grouping and Correlations With Severity of Substance Exposure
| Exposed
|
Unexposed
|
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Variable | n | Mean | SD | n | Mean | SD | t | df | ra |
| Alcohol | |||||||||
| Tapping inhibition | 114 | 7.7 | 5.4 | 59 | 9.7 | 5.9 | 2.34* | 171 | −0.17* |
| Category fluency | 171 | 4.4 | 2.9 | 83 | 5.1 | 3.3 | −0.2 | 251 | 0.01 |
| Motor planning | 185 | 3.4 | 1.9 | 90 | 3.3 | 2.2 | −0.5 | 273 | 0.01 |
| Cocaine | |||||||||
| Tapping inhibition | 92 | 7.9 | 5.7 | 86 | 9 | 5.6 | 1.25 | 173 | −0.09 |
| Category fluency | 128 | 5.0 | 3.4 | 131 | 5.4 | 3.3 | 0.9 | 254 | −0.03 |
| Motor planning | 134 | 3.5 | 2 | 146 | 3.3 | 2 | −0.7 | 275 | 0.06 |
| Marijuana | |||||||||
| Tapping inhibition | 53 | 8.4 | 6 | 116 | 8.2 | 5.4 | −0.2 | 165 | −0.01 |
| Category fluency | 74 | 5.3 | 3.2 | 175 | 5.2 | 3.4 | −0.3 | 246 | 0.04 |
| Motor planning | 76 | 3.5 | 2 | 194 | 3.3 | 2 | −0.8 | 266 | 0.01 |
a
Spearman correlations, maternal report.
*
p < 0.05.