. Author manuscript; available in PMC: 2018 Jul 1.

Published in final edited form as: J Subst Abuse Treat. 2017 Apr 25;78:30–36. doi: 10.1016/j.jsat.2017.04.013

Table 2.

Multiple Imputation Estimates of Main and Interaction Effects

	Main Effects - Model a				Interaction Effect - Model b
	MI-B	MI-SE B	95% CI		MI-B	MI-SE B	95% CI
	MI-B	MI-SE B	Lower Bound	Upper Bound	MI-B	MI-SE B	Lower Bound	Upper Bound

6-Month Gratitude	.0022	.0061	−.0099	.0142	.0008	.0057	−.0107	.0122
6-Month Percent Days Abstinent	.0062^*	.0024	.0014	.0111	.0103^***	.0025	.0053	.0154
6-Month Gratitude x 6-Month Percent Days Abstinent					.0007^*	.0003	.0001	.0013

Notes:

p < .05;

^**

p < .01;

^***

p < .001.

DV = 12-Month Percent Days Abstinent, arcsine transformed. All models included age, baseline gratitude and baseline percent days abstinent as control variables. CI = Confidence Interval. MI=multiple imputation.