Table 1.
Healthy Control Children (n=25) |
PO-MDD (n=53) |
Group Comparison | |
---|---|---|---|
Age in Years; Mean(SD) | 5.63 (1.02) | 5.50 (.85) | t(82) = .61, p = .54 |
Gender (% Males) | 64 | 66 | χ2(1) = .034, p = .85 |
Ethnicity | |||
% White | 72 | 82 | |
%Black | 16 | 12 | |
%Other | 12 | 6 | χ2(2) = 1.08, p = .58 |
Parental income; Mean(SD) | $70K ($26K) | $66K ($34K) | t(51.31)= .37 p = .69 |
Maternal BDI score; Mean(SD) | 4.04(4.35) | 10.17(7.10) | t(71.14)= −4.83, p < .001. |
N of K-SADS MDD Symptoms Endorsed; Mean(SD) |
0.60(.87) | 5.66(1.57) | t(76.26) = −18.88, p < .001 |
Comorbidities | |||
%ADHD | 0 | 30 | ns |
%GAD | 0 | 20 | |
%ODD | 0 | 52 |
Note: n=2 missing data for parental income of healthy control participants. ADHD = attention-deficit/hyperactivity disorder; BDI = Beck Depression Inventory; GAD = generalized anxiety disorder; K-SADS = Kiddie Schedule for Affective Disorders; MDD = major depressive disorder; PO-MDD = preschool-onset major depression; ODD = oppositional defiant disorder.