Table 1.
Demographics and clinical characteristics of the sample
| Males (n = 51) | Females (n = 48) | Between group comparison | |
|---|---|---|---|
| Ethnicity | |||
| % Caucasian (n) | 68.63% (35/51) | 52.08% (25/48) | No difference |
| % Other (n) | 3.92% (2/51) | 14.58% (7/48) | |
| % Missing (n) | 27.45% (14/51) | 33.33% (16/48) | |
| Handedness | |||
| % Right‐handed (n) | 90.20% (46/51) | 93.75% (45/48) | No difference |
| Age | |||
| in years; M (SD) | 45.02 (3.88) | 44.33 (4.77) | No difference |
| BMI | |||
| M (SD) | 29.17 (5.15) | 29.86 (6.89) | No difference |
| Parental SESa | |||
| % Lowest SES quartile (n) | 23.53% (12/51) | 20.83% (10/48) | No difference |
| % Lower middle SES quartile (n) | 23.53% (12/51) | 18.75% (9/48) | |
| % Higher middle SES quartile (n) | 21.57% (11/51) | 25.00% (12/48) | |
| % Highest SES quartile (n) | 19.61% (10/51) | 20.83% (10/48) | |
| % Missing (n) | 11.76% (6/51) | 12.50% (6/48) | |
| Education level | |||
| % Without completed high school (n) | 9.8% (5/51) | 4.17% (2/48) | No difference |
| % Completed high school (n) | 21.57% (11/51) | 14.58% (7/48) | |
| % More than high school (n) | 66.67% (34/51) | 77.08% (37/48) | |
| % Missing (n) | 1.96% (1/51) | 4.17% (2/48) | |
| WAIS vocabulary, age‐scaled | |||
| M (SD) | 11.18 (3.35) | 10.09 (3.08) | No difference |
| WAIS block design, age‐scaled | |||
| M (SD) | 11.67 (3.35) | 9.74 (2.98) | Males > Females |
| DSM‐based diagnosis | |||
| % MDD in remission (n) | 25.49% (13/51) | 29.17% (14/48) | No difference |
| % Psychosis (n) | 31.37% (16/51) | 31.25% (15/48) | |
| % Healthy controls (n) | 43.14% (22/51) | 39.58% (19/48) | |
| Psychotropic medication | |||
| % on psychotropic medication (n) | 35.29% (18/51) | 31.25% (15/48) | No difference |
| Substance use disorder | |||
| % with any substance use disorder (n) | 64.72% (33/51) | 16.67% (8/48) | Males > Females |
a
Parental socioeconomic status (SES) was assigned a single, continuous score for education, occupation, and family income according to the system used for the United States Bureau of the Census (Myrianthopoulos and French, 1968). This composite index ranged from 0.0 (low) to 9.5 (high).