TABLE 1. Mental Health Characteristics of Whole Sample.

	Case (N=686)	Control (N=280)	Comparisons (Adjusted OR and 95% CI)ˆ
Lifetime Drug Dependence
% Cannabis	57	31	2.94 (2.13– 4.07)**
% Sedative	39	2	33.40 (13.50–82.63)**
% Stimulants	51	19	4.31 (3.02– 6.14)**
% Cocaine	36	3	17.79 (8.56–36.96)**
% Alcohol	42	30	1.43 (1.04– 1.97)**
Mean drug classes ever#	2.1	0.8	t724 = −1.32**
% Tobacco	67	44	2.42 (1.79– 3.29)**
Psychopathology
% Borderline personality disorder	58	35	2.36 (1.73– 3.21)**
% Depressive episode	59	51	1.37 (1.01– 1.85)*
% Posttraumatic stress disorder	36	19	2.39 (1.66– 3.43)**
% Panic disorder	23	26	ns
% Anti-social personality disorder	46	17	3.45 (2.40– 4.97)**
Childhood Maltreatment
% Physical	59	40	1.95 (1.44– 2.64)**
% Emotional	74	70	ns
% Sexual	49	48	1.50 (1.09– 2.07)*
% Neglect	42	30	1.61 (1.17– 2.21)*
% Any maltreatment type	86	81	1.63 (1.09– 2.45)*

^#Includes alcohol; does not include opioid dependence.

^ˆAdjusted for age, gender, and employment status.

^*p < 0.05,

^**p < 0.001