Table 1.
Demographic Characteristics
| Full groups |
Matched subgroups |
|||||||
|---|---|---|---|---|---|---|---|---|
| Characteristic | Controls | Patients | Controls | Patients | ||||
| N | (%) | N | (%) | N | (%) | N | (%) | |
| Participants | 12 | 14 | 9 | 9 | ||||
| Male gendera | 9 | (75) | 9 | (69) | 7 | (78) | 7 | (88) |
| White racea,b | 6 | (50) | 4 | (29) | 4 | (44) | 2 | (25) |
| M | (SD) | M | (SD) | M | (SD) | M | (SD) | |
| Age (years)a | 41.4 | (6.1) | 40.8 | (11.8) | 40.8 | (6.0) | 34.1 | (10.0) |
| HPEL (years)c | 13.1 | (1.0) | 13.5 | (2.2) | 13.1 | (1.0) | 13.7 | (2.7) |
Note. The three most accurate controls and the five least accurate patients on the delayed match-to-sample task were dropped to create the matched subgroups. HPEL = Highest parental education level.
a
Information missing for one patient;
b
One patient was Hispanic, all other non-white participants were black;
c
Information missing for 4 controls and 3 patients.