. Author manuscript; available in PMC: 2009 Oct 4.

Published in final edited form as: Am J Addict. 2009 Jul–Aug;18(4):316–320. doi: 10.1080/10550490902925490

Table 2.

Analysis of Effects of Number of Cigarettes Per Day for ASI Composites (N = 231)

	ASI Alcohol Composite		ASI Drug Composite		ASI Medical Composite		ASI Psychiatric Composite
	Parameter estimate	P-Value	Parameter estimate	P-Value	Parameter estimate	P-Value	Parameter estimate	P-Value
Time	0.002	0.58	−0.0004	0.91	0.005	0.41	0.008	0.04^*
Number of Cigarettes per day	0.003	0.15	0.005	0.002^*	0.007	0.06	0.003	0.14
Number of Cigarettes by Time Interaction	−0.0003	0.33	−0.001	0.01^*	−0.0004	0.49	−0.0002	0.41

p < .05

**This model controlled current methadone use at baseline.