Table 2.

Demographic Characteristics of Participants at Baseline

	No SI During Ages 3–7 (n = 258)	SI During Ages 3–7 (n = 34)	Statistic
Demographics
Gender (% male)	50	67	χ(1)2 = 3.93*
Age, mean (SD)	5.33 (0.83)	5.47 (1.03)	t(304) = −0.90
Age at follow-up, mean (SD)	9.52 (0.89)	9.90 (0.72)	t(221) = −1.81
Income-to-needs ratio, mean (SD)	2.07 (1.09)	1.71 (1.10)	t(301) = 1.77
Traumatic life events, mean (SD)	3.46 (3.67)	5.24 (6.40)	t(300) = −1.56
Maternal Psychopathology (% present)
Maternal history of suicide attempts	7	9	χ(1)2 = 0.26
Maternal depression	37	57	χ(1)2 = 5.12*
Maternal bipolar	5	12	χ(1)2 = 1.81
Maternal anxiety	11	30	χ(1)2 = 7.83**
Maternal ADHD	3	3	χ(1)2 = 0.00
Maternal substance abuse	5	15	χ(1)2 = 4.93*
Maternal CD	4	12	χ(1)2 = 4.70*
Maternal total number of diagnoses, mean (SD)	0.76 (1.02)	1.45 (1.03)	t(300) = −3.66***
1st or 2nd degree relative with a history of suicide attempts	26	27	χ(1)2 = 0.28
Early Childhood Psychopathology (ages 3–7; % present)
Depression diagnosis	36	76	χ(1)2 = 17.70***
ADHD	18	64	χ(1)2 = 33.40***
ODD/CD diagnosis	31	79	χ(1)2 = 27.99***
PTSD diagnosis	5	6	χ(1)2 = 0.08
Anxiety diagnosis	32	59	χ(1)2 = 9.27**

Note: Means and standard deviations are presented for continuous variables. ADHD = attention-deficit/hyperactivity disorder; CD = conduct disorder; PTSD = posttraumatic stress disorder; ODD = oppositional defiant disorder.

^*p<.05,

^**p<.01,

^***p<.000