Table 2.
Patient Demographics
| Healthy Study Participants (HSP: N= 56) | Psychiatric Study Participants (PSP: N= 96) | P-Value | Group Differences | |
|---|---|---|---|---|
| Demographics | ||||
| Age | 31.3 ± 8.6 | 35.8 ± 7.5 | (p = 0.001)1 | HSP < PSP |
| Sex (% Male) | 48 | 43 | (p = 0.612)1 | HSP = PSP |
| Ethnicity (% White/% AA/% Other) | 63/25/12 | 74/21/5 | (p = 0.190)2 | HSP = PSP |
| Body Mass Index (BMI) | 27.3 ± 4.1 | 27.0 ± 5.3 | (p = 0.675)3 | HSP = PSP |
| SES Score | 44.0 ± 12.6 | 45.0 ± 11.8 | (p = 0.592)1 | HSP = PSP |
| BDI State Depression Score | 2.6 ± 9.1 | 11.6 ± 11.4 | (p< 0.001)3 | HSP < PSP |
| Psychosocial Function (GAF) | 83.0 ± 4.5 | 61.2 ± 11.0 | (p<0.001)1 | HSP >PSP |
| Personality Traits | ||||
| Neuroticism (EPQ-N) | 10.4 ± 2.3 | 12.6 ± 2.4 | (p< 0.001)3 | HSP < PSP |
| Psychoticism (EPQ-P) | 9.9 ± 1.6 | 10.8 ± 2.0 | (p< 0.001)3 | HSP < PSP |
| Extraversion (EPQ-E) | 10.7 ± 1.9 | 11.2 ± 2.4 | (p = 0.185)3 | HSP = PSP |
| Novelty Seeking (TPQ-NS) | 20.3 ± 5.0 | 18.4 ± 6.6 | (p = 0.228)3 | HSP = PSP |
| Harm Avoidance (TPQ-HA) | 10.2 ± 5.5 | 15.4 ± 7.3 | (p< 0.001)3 | HSP < PSP |
| Reward Dependence (TPQ-RD) | 15.8 ± 4.0 | 15.2 ± 4.2 | (p = 0.185)3 | HSP = PSP |
Unless noted, all values are reported as the mean ± SD.
1
ANOVA;
2
Chi-Square,
3
ANCOVA (with age, sex, race, SES as covariates)