Table 3.

Survival Models of Abuse/Dependence

	Nicotine		Cannabis		Cocaine		Alcohol
	HR	95% CI	HR	95% CI	HR	95% CI	HR	95% CI
Inattention trajectories
Medium	1.61***	1.30–2.01	0.85	0.57–1.27	1.18	0.47–2.94	0.90	0.65–1.25
High	1.94***	1.49–2.51	0.74	0.46–1.2	0.82	0.27–2.44	0.92	0.62–1.36
Hyperactivity trajectories
High mother only	0.83†	0.68–1.02	0.95	0.65–1.39	1.23	0.53–2.86	0.98	0.72–1.34
High	0.81	0.62–1.06	1.07	0.66–1.73	1.60	0.57–4.47	0.97	0.65–1.46
Opposition trajectories
High mother only	1.24*	1.01–1.52	1.96***	1.32–2.9	1.86	0.74–4.66	1.35†	0.99–1.86
High	1.47**	1.14–1.88	2.21**	1.37–3.57	2.92*	1.05–8.14	1.39	0.94–2.06
Anxiety trajectories
High mother only	0.94	0.77–1.15	0.86	0.6–1.24	0.90	0.39–2.05	0.82	0.60–1.11
High	0.81†	0.65–1.02	0.74	0.47–1.17	1.25	0.54–2.87	0.73	0.51–1.06
Adversity	1.36†	0.98–1.89	0.72	0.38–1.36	5.1**	1.61–16.17	1.23	0.74–2.02
Sex	0.78**	0.65–0.93	2.01***	1.44–2.8	0.74	0.37–1.50	2.15***	1.63–2.83

Note. The table presents Hazard Ratios (HR) and 95% Confidence Interval (CI) from Cox models. The time variable is the age at first symptom for each outcome as reported by the young adult at the time of diagnosis. Analyses were conducted on the 1798 participants with data for behavioral trajectories and diagnosis.

^***p<.001;

^**p<.01;

^*p<.05;

^†p<.10