Table 1.
Demographics and clinical measures across studied groups
| HC | CC | SA | |
|---|---|---|---|
| Total N (%) | 15,269 (71) | 5,557 (26) | 694 (3) |
| Females N (%) | 7,637 (50) | 3,642 (66) | 466 (67) |
| Males N (%) | 7,632 (50) | 1,915 (34) | 228 (33) |
| Age mean (sd) | 57.6 (14.8) | 53.2 (15.4) | 49.2 (16.3) |
| BDI mean (sd)¥Ω | 3.6 (4.0) | 18 (10.9) | 23 (11.8) |
| HDRS mean (sd)¥Ω | 1.3 (2.0) | 11.0 (6.9) | 13.8 (6.9) |
| Depression age of onset¥ | NA | 29.8 (14.3) | 23.3 (14.1) |
| Antidepressant use %¥ | 0.1% | 36% | 21% |
| Depression recurrence¥ % | NA | 21% | 36% |
HC- Healthy controls; CC- Clinical controls; SA - Suicide attempters.
BDI- Beck Depression Inventory; HDRS- Hamilton Depression Rating Scale
¥
Data available only for a subset of the sample.
Ω
Sum-score excluding the suicidal behaviours item.