Table 1:
Demographics and Individual Characteristics. Mean (SD)
| Control (C) n=35 | Depression (D) n=33 | Ideator (I) n=32 | Attempter (A) n=49 | ||||
|---|---|---|---|---|---|---|---|
| Predictors | N | p-value | Pairwise | ||||
| Age | 63.5 (8.7) | 63.0 (7.8) | 60.4 (6.0) | 62.3 (8.5) | 149 | 0.432 | |
| % Male | 40% | 51.50% | 56.20% | 51% | 149 | 0.584 | |
| % White | 88.60% | 72.70% | 87.50% | 83.70% | 149 | 0.331 | |
| Education | 15.7 (2.7) | 15.1 (2.6) | 15.3 (2.2) | 14.1 (2.9) | 149 | 0.038 | C > A |
| SES (x $1000) | 36.5 (21.2) | 20.9 (16.6) | 23.3 (20.7) | 18.2 (11.5) | 149 | <0.001 | C > A, D, I |
| BLS | NA | NA | NA | 3.9 (2.2) | 49 | NA | NA |
| HRSD - 16 | NA | 15.9 (6.0) | 17.8 (7.0) | 17.9 (8.5) | 114 | 0.46 | |
| SSI | NA | NA | 15.4 (5.7) | 21.2 (7.6) | 81 | <0.001 | A > I |
| MMSE | 28.9 (1.1) | 29.0 (1.0) | 29.0 (1.4) | 28.4 (1.8) | 149 | 0.169 | |
| DRS | 138.2 (3.4) | 135.8 (5.1) | 137.2 (3.9) | 135.2 (4.7) | 143 | 0.012 | C > A |
| IRI | |||||||
| Perspective Taking subscale | 18.2 (4.6) | 16.1 (5.1) | 17.2 (6.7) | 16.6 (4.6) | 143 | 0.391 | |
| Fantasy subscale | 11.5 (4.5) | 10.6 (5.9) | 11.0 (5.1) | 11.8 (5.4) | 143 | 0.772 | |
| Empathetic Concern subscale | 21.5 (3.8) | 20.0 (4.6) | 21.0 (4.5) | 21.6 (3.9) | 143 | 0.363 | |
| Personal Distress Subscale | 6.6 (3.9) | 8.8 (4.2) | 10.6 (6.6) | 10.6 (5.1) | 143 | 0.002 | C < A, I |
| IIP | |||||||
| Ambivalence | 2.9 (3.7) | 4.4 (3.5) | 6.6 (4.8) | 6.0 (5.3) | 142 | 0.004 | C < A, I |
| Sensitivity | 3.2 (3.1) | 6.5 (4.3) | 8.4 (5.4) | 8.0 (4.5) | 142 | <0.001 | C < A, D, I |
| Aggression | 1.6 (2.5) | 4.5 (3.3) | 5.2 (4.2) | 3.9 (3.7) | 142 | 0.001 | C < A, D, I |
| BIS Total | 31.0 (9.7) | 46.2 (15.8) | 46.0 (12.8) | 49.4 (17.4) | 142 | <0.001 | C < A, D, I |
Note: SES = Household Income Per Capita; BLS = Beck Lethality Scale; HRSD = Hamilton Rating Scale for Depression - 16 (without the Suicide item); SSI = Scale of Suicide Ideation; MMSE = Mini Mental Status Exam; DRS = Dementia Rating Scale; IRI = Interpersonal Reactivity Index; IIP = Inventory of Interpersonal Problems; BIS = Barratt Impulsivity Scale. The HRSD comparisons excluded the non-psychiatric control group, and the SSI comparisons excluded the non-psychiatric control group and depressed non-suicidal group.