Table 1.
Demographic characteristics and clinical differences.
| Variable | HCa (n = 17) | NAa (n = 15) | SAa (n = 13) | p-valueb | Post hoc contrastc |
|---|---|---|---|---|---|
| Demographic variables | |||||
| Age, years | 26 (24) | 36 (20) | 31 (21) | 0.45 | |
| Education, years | 15 (3) | 15 (3) | 15 (3) | 0.35 | |
| IQ, NLV score | 101 (13) | 106 (23) | 105 (11) | 0.79 | |
| Female (%) | 94 | 53 | 69 | <0.05 | HC > NA |
| Clinical variables | |||||
| Suicide ideation, SSI score | 0 (0) | 0 (0) | 0 (1) | <0.05 | HC < SA |
| Hopelessness, BHS-score | 2 (1) | 3 (2) | 3 (3) | < 0.05 | HC < SA |
| Self-reported depression, BDI-score | 1 (3) | 3 (5) | 5 (15) | <0.01 | HC < SA |
| Stait Anxiety, ZBV score | 29 (7) | 34 (13) | 32 (17) | 0.08 | |
| Trait Anxiety, ZBV score | 29 (10) | 36 (17) | 45 (14) | < 0.01 | HC <NA, SA |
| Fun Seeking, BAS score | 12 (4) | 10 (3) | 11 (1) | <0.05 | HC >NA, SA |
| Reward Responsiveness, BAS-score | 18 (4) | 17 (6) | 18 (6) | 0.70 | |
| Drive, BAS score | 13 (4) | 11 (2) | 12 (6) | <0.05 | HC > NA |
| Avoidance, BIS score | 21 (5) | 24 (9) | 20 (13) | 0.28 | |
| Impulsivity, BIS-11 score | 57 (11) | 50 (19) | 59 (23) | 0.40 | |
| History of Axis II Diagnoses, DSM-IV (%) | 0 | 0 | 8 | 0.29 | |
| Medication use, SSRI and SNRI (%) | 0 | 27 | 46 | <0.01 | HC < NA, SA |
aExcept where indicated otherwise, values are the median and the interquartile range; bKruskal-Wallis tests for comparisons with continuous variables; Fisher’s Exact Tests for categorical variables; cMann-Whitney U test for continuous variables. Only significant post hoc tests are shown HC, Healthy Controls; L, Left; NA, Euthymic non-attempters; R, Right; SA, Euthymic suicide attempters.