Table 3A.

Probability of heroin use group conditional on AOD use group.

		AOD Use Trajectory Groups
Heroin Use Trajectory Groups	Low Use (n = 63)	Late-onset Increase (n = 77)	Early-onset Increase (n = 86)	Gradual Decrease (n = 60)	No Decrease (n = 55)
Rapid Decrease (n = 84)	0.12	0.10	0.54	0.08	0.31
Moderate Decrease (n = 50)	0.14	0.13	0.13	0.15	0.23
Gradual Decrease (n = 120)	0.51	0.39	0.13	0.63	0.16
No Decrease (n = 87)	0.23	0.38	0.20	0.14	0.30
	1.00	1.00	1.00	1.00	1.00

Table 3B Probability of AOD use group conditional on heroin use group.
	AOD Use Trajectory Groups
Heroin Use Trajectory Groups	Low Use (n = 63)	Late-onset Increase (n = 77)	Early-onset Increase (n = 86)	Gradual Decrease (n = 60)	No Decrease (n = 55)
Rapid Decrease (n = 84)	0.09	0.09	0.55	0.06	0.21	1.00
Moderate Decrease (n = 50)	0.17	0.19	0.22	0.17	0.25	1.00
Gradual Decrease (n = 120)	0.27	0.25	0.09	0.32	0.07	1.00
No Decrease (n = 87)	0.17	0.33	0.20	0.09	0.20	1.00

Table 3C Joint probability of heroin and AOD use groups.
	AOD Use Trajectory Groups
Heroin Use Trajectory Groups	Low Use (n = 63)	Late-onset Increase n = 77)	Early-onset Increase (n = 86)	Gradual Decrease (n = 60)	No Decrease (n = 55)	Row Percents
Rapid Decrease (n = 84)	0.02	0.02	0.13	0.01	0.05	0.23
Moderate Decrease (n = 50)	0.03	0.03	0.03	0.03	0.04	0.16
Gradual Decrease (n = 120)	0.10	0.09	0.03	0.11	0.03	0.36
No Decrease (n = 87)	0.04	0.08	0.05	0.03	0.05	0.25
Column Percents	0.19	0.22	0.24	0.18	0.17	1.00