Table 2.

Abstinence rates (percent) using Available-Case (AC) and Intent-to-Treat (ITT) Analyses: 2-month, 4-month, and 6-month differences by treatment arm.

			Time
		2m	4m	6m
AC Abstinence Rates
All		24	15	13
ME		24	15	12
SE		24	16	14
p-val		0.91	0.96	0.78
ITT Abstinence Rates
All		12	10	9
ME		12	9	9
SE		13	10	10
p-val		0.72	0.76	0.76

Note: ME = Motivationally-Enhanced Treatment; SC = Standard Care Treatment. Abstinence based on 24-hour biochemical verification of self-reported 7-day quit status. Column p-values test between-condition differences at each time point.