Table 2.
Comparison of scores on beck scale for SI and psychological assessments and performance on attention tasks between high SI group and low SI group
| Low SI group (N=40) |
High SI group (N=33) |
p | |
|---|---|---|---|
| Mean±SD | Mean±SD | ||
| BSI score | 2.9±2.7 | 16.1±6.2 | <0.001*** |
| BDI score | 13.9±10.6 | 28.5±12.4 | <0.001*** |
| BIS score | 62.2±14.0 | 71.5±12.3 | 0.0083** |
| Trait anxiety | 44.7±9.5 | 57.5±10.7 | <0.001*** |
| State anxiety | 43.1±9.6 | 58.8±12.5 | <0.001*** |
| Visual sustained attention† | |||
| OE | 27.7±45.9 | 32.2±55.5 | 0.9512 |
| CE | 8.9±8.0 | 15.2±14.7 | 0.0122* |
| RT (ms) | 63.6±149.9 | 488.5±158.4 | 0.0823 |
| SD of RT | 172.6±80.0 | 166.2±89.0 | 0.9220 |
| Divided attention† | |||
| OE | 20.3±10.6 | 19.7±13.3 | 0.6245 |
| CE | 8.9±8.0 | 9.3±11.0 | 0.6429 |
| RT (ms) | 792.3±183.3 | 724.8±257.0 | 0.1919 |
| SD of RT | 290.9±90.2 | 263.9±107.3 | 0.3111 |
Independent t-test,
*
p<0.05,
**
p<0.01,
***
p<0.001,
†
general linear model adjusting for sex and age.
BSI: Beck Scale for Suicide Ideation, BDI: Beck Depression Inventory, BIS: Barratt Impulsiveness Scale, SI: suicidal ideation, OE: omission error, CE: commission error, RT: reaction time, SD: standard deviation