Table 1.
Demographic information and neuropsychological data for subjects by group
| Control group (CON,n = 12) | Prenatal cocaine exposure group (PCE,n = 28) | Group differences | |
|---|---|---|---|
| Age (in whole years) |
14.7 ± 0.49 |
14.8 ± 0.72 |
P = 0.439 |
| Gender |
7 girls/ |
18 girls/ |
P = 0.039a |
| 5 boys |
10 boys |
|
|
| Cocaine exposure (weeks of maternal cocaine use divided by weeks of gestation) |
None |
0.402 ± 0.25 |
P <0.001a |
| Tobacco exposure (average number of cigarettes per day) |
0.020 ± 0.071 |
8.155 ± 7.79 |
P <0.001a |
| Alcohol exposure (average ounces per day) |
0.007 ± 0.015 |
0.199 ± 0.371 |
P = 0.011a |
| Marijuana exposure (average number of joints per day) |
0.003 ± 0.010 |
0.125 ± 0.367 |
P = 0.091b |
| Postnatal cocaine exposure (hair sample positive for cocaine at age 10.5 years and/or 12.5 years) |
6 yes / 6 no |
10 yes / 18 no |
P = 0.030a |
| Total brain volume (in mm3) |
1,582,350 |
1,559,794 |
P = 0.846 |
| ± 188,214 |
± 177,613 |
||
| Word-color interference Stroop test, raw score |
44.417 ± 9.54 |
39.857 ± 9.15 |
P = 0.605 |
| Trail Making test, part A completion time (in seconds) |
11.750 ± 4.37 |
12.786 ± 4.78 |
P = 0.882 |
| Trail Making test, part B completion time (in seconds) | 23.000 ± 7.86 | 29.643 ± 11.00 | P = 0.360 |
Mean values are given with standard deviation.
aSignificant differences between groups (P <0.05).
bTrend-level differences between groups (0.05 < P < 0.10).