Table 3.

Incremental Cost-Effectiveness Ratios (ICERs) at Treatment Termination and 6-Month Follow-Up

	Treatment termination				6-month follow-up
	CBT4CBT + TAU	TAU	CBT4CBT + mon	TAU	CBT4CBT + TAU	TAU	CBT4CBT + mon	TAU
Mean (winsorized) costs	$516.45 ($516.45)	$1,345.60 ($782.91)	$381.22 ($382.13)	$1,345.60 ($782.91)	$516.45 ($516.45)	$1,345.60 ($782.91)	$381.22 ($382.13)	$1,345.60 ($782.91)
Mean efficacya	6.74	3.69	4.41	3.69	6.95	7.19	4.05	7.19
Mean (winsorized) ICER	-$271.85 (-$87.36)		-$1,339.42 (-$556.64)		$3,454.79 ($1,110.25)		$307.13 ($127.64)
Median costs	$439.07	$368.91	$335.21	$368.91	$439.07	$368.91	$335.21	$368.91
Median efficacya	5.00	3.00	4.00	3.00	8.00	6.5	4.00	6.50
Median ICER	$35.08		-$33.70		$46.77		$13.48

Note. N = 57 so that ICERs are comparable at treatment termination and 6-month follow-up. Thus, total treatment costs in this table differ from total treatment costs presented in Table 1, where N = 63. ICER = [Treatment A mean (or median) cost - Treatment B mean (or median) cost] / [Treatment A mean (or median) drinking days per month - Treatment B mean (or median) drinking days per month).

^aMean or median efficacy of a treatment is calculated by subtracting mean (or median) 6-month (or treatment termination) follow-up drinking days per month from mean (or median) baseline drinking days per month. These drinking day per month difference values were obtained from Table 2 “Baseline minus treatment termination drinking days per month” columns.