Table 2.
Controls N=31 | MDD N=51 | Control v. MDD (χ2, p-value) | MDD Suicide Attempters N=15 | MDD Non- Attempters N=36 | Attempter vs. Non-Attempter (χ2, p-value) | |
---|---|---|---|---|---|---|
Females | 16 (51.6%) | 28 (54.9%) | 0.08, p=0.77 | 8 (53.3%) | 20 (55.6%) | 0.021, 0.88 |
Inpatient | - | 14 (27.5%) | - | 6 (40.0%) | 8 (22.2%) | 2.13, 0.15 |
# with family history of MDD in 1st degree relatives | - | 25 (49.0%) | - | 5 (33.3%) | 20 (55.6%) | 2.09, 0.15 |
Current or Past Comorbid Anxiety Disorder | - | 32 | - | 7 (46.7%) | 25 (69.4%) | 2.35, 0.13 |
Axis 2 Comorbidity | - | 21 (37.2) | - | 6 (40.0%) | 13 (36.1%) | .069, .69 |
Race/Ethnicity | 0.105* | 0.09* | ||||
Asian | 6 (19.4%) | 3 (5.9%) | 0 (0%) | 3 (8.3%) | ||
African American | 6 (19.4%) | 5 (9.8%) | 3 (20%) | 2 (5.6%) | ||
Caucasian | 15 (48.4%) | 33 (64.7%) | 8 (53.3) | 26 (72%) | ||
Hispanic | 2 (3.2%) | 8 (15.7%) | 2 (13.3%) | 5 (13.9%) | ||
>1 Race | 1 (3.2%) | 2 (3.9%) | 2 (13.3%) | 0 (0%) | ||
Unknown | 1 (3.2%) | 0 (0%) | 0 (0%) | 0 (0%) | ||
Any Current Tobacco Use | 2 (6.5%) | 7 (13.7%) | 0.47* | 1 (6.7%) | 6 (16.7%) | 0.66* |
(t, p-value) | (t, p-value) | |||||
Age | 32.6 ± 11.3 | 40.3 ± 10.7 | −3.02, p=.004 | 38.5 ± 11.5 | 41.0 ± 10.5 | −0.76, 0.45 |
Hamilton Depression Rating Scale (24 item) | 1.7 ± 2.4 | 24.6 ± 6.4 | −19.01, p<.001 | 26.5 ± 6.2 | 23.8 ± 6.4 | 1.40, 0.17 |
Beck Depression Inventory | 1.3 ± 1.7 | 25.7 ± 8.8 | −15.19, p<.001 | 27.5 ± 9.2 | 24.9 ± 8.7 | 0.94, 0.35 |
Median # of Depressive Episodes | - | 4 | - | 5 | 2.5 | −1.70, 0.088** |
Median Length of Current Depressive Episode (weeks) *** | - | 52 | 52 | 52 | −1.15, 0.25** | |
Age at 1st Depressive Episode | - | 19.3 ± 10.8 | - | 14.7 ± 5.8 | 21.2 ± 11.9 | −2.03, 0.05 |
# of Suicide Attempters | - | 15 (29.4%) | - | 15 (100%) | - | - |
Mean # of Attempts | 2.1 ± 1.6 | - | - | |||
Maximum Lethality of Attempts**** | 2.3 ± 2.0 | - | - | |||
Lethality of Most Recent Attempt | 1.5 ± 1.6 | - | - |
Fisher’s exact p-value as cells contain values too small to fulfill assumptions of χ2 test
Mann Whitney Test presented as (Z, p-value), as data are not normally distributed.
Best estimate from patient self report
From Columbia University Suicide History Form (details in methods)