Table 2. Associations between sociodemographic, clinical, and social cognition variables and lifetime self-injurious behavior.
| Self-injurious behavior | ||||
|---|---|---|---|---|
| Yes | No | |||
| Variable | n=11 (15.3%) | n=61 (84.7%) | p-value | η2 or ø |
| Sociodemographic and clinical variables | ||||
| Sex, n (%) | ||||
| Female | 10 (90.9) | 50 (82.0) | ||
| Male | 1 (9.1) | 11 (18.0) | 0.677 | 0.007 |
| Age | 24.0 (20.0-30.0) | 35.0 (26.0-45.0) | 0.005 | 0.110 |
| Married or live-in partner, n (%) | ||||
| Yes | 3 (27.3) | 22 (36.1) | ||
| No | 8 (72.7) | 39 (63.9) | 0.737 | 0.004 |
| Education, n (%) | ||||
| Less than high school | 1 (9.1) | 7 (11.5) | ||
| High school or higher | 10 (90.9) | 54 (88.5) | 1.000 | 0.001 |
| Family history of suicide, n (%) | ||||
| Yes | 0 (0.0) | 7 (11.5) | ||
| No | 11 (100.0) | 54 (88.5) | 0.585 | 0.019 |
| Age at 1st depressive episode | 17.0 (14.0-22.0) | 23.0 (17.0-31.0) | 0.017 | 0.079 |
| HADS | ||||
| Anxiety | 9.0 (6.0-12.0) | 9.0 (6.0-13.0) | 0.962 | 0.000 |
| Depression | 5.0 (4.0-12.0) | 7.0 (4.0-11.0) | 0.515 | 0.006 |
| AUDIT-C | 3.0 (2.0-5.0) | 2.0 (0.0-4.0) | 0.106 | 0.036 |
| Social cognition variables | ||||
| RMET | 27.0 (24.0-29.0) | 26.0 (23.0-28.0) | 0.444 | 0.008 |
| Hinting Task | 18.0 (16.0-20.0) | 19.0 (18.0-20.0) | 0.903 | 0.000 |
| IRI | ||||
| Empathic concern | 30.0 (28.0-34.0) | 31.0 (27.0-34.0) | 0.637 | 0.003 |
| Perspective taking, mean (SD) | 26.5 (5.5) | 25.1 (5.0) | 0.421 | 0.009 |
| Personal distress | 26.0 (24.0-30.0) | 24.0 (18.5-27.0) | 0.027 | 0.068 |
| Total, mean (SD) | 83.1 (7.3) | 77.8 (9.0) | 0.068 | 0.047 |
Data presented as median (Q1-Q3) when non-normally distributed data and as mean (SD) when normally distributed. Other presentations indicated.
Bold type denotes statistical significance.
AUDIT-C = Alcohol Use Disorders Identification Test-Consumption; HADS = Hospital Anxiety and Depression Scale; RMET = Revised Reading the Mind in the Eyes Test; IRI = Interpersonal Reactivity Index.
Effect sizes were described as η2 for Student’s t-test or Mann-Whitney U test, and as ø for chi-square test.