Table 3.

Results of the Multilevel Growth Models for Percent Days Heavy Drinking (PDHD) and Dyadic Adjustment Scale (DAS) Scores for Gay Couples

Fixed Effect	B	SE	z
Gay Couples
PDHD
Status at termination
BCT	1.79	0.92	1.94
BCT-IBT contrast	−0.13	0.12	−1.07
Linear rate of change during treatment
BCT	−1.95	0.36	−5.42**
BCT-IBT contrast	0.15	0.11	1.36
Linear rate of change after treatment
BCT	1.12	0.47	2.38*
BCT-IBT contrast	−0.80	0.38	−2.11*
DAS
Status at termination
BCT	114.21	8.64	13.22**
BCT-IBT contrast	−8.61	3.04	−2.83**
Linear rate of change during treatment
BCT	27.36	4.46	6.13**
BCT-IBT contrast	−8.94	3.76	2.37*
Linear rate of change after treatment
BCT	−10.21	4.06	2.51*
BCT-IBT contrast	−5.26	2.61	2.01*
Lesbian Couples
PDHD
Status at termination
BCT	1.62	0.94	1.06
BCT-IBT contrast	0.04	0.10	0.41
Linear rate of change during treatment
BCT	−2.03	0.49	−4.41**
BCT-IBT contrast	−0.01	0.09	−0.11
Linear rate of change after treatment
BCT	1.13	0.31	3.64**
BCT-IBT contrast	0.54	0.22	2.45*
DAS
Status at termination
BCT	106.43	9.24	11.52**
BCT-IBT contrast	−6.16	2.91	2.12*
Linear rate of change during treatment
BCT	16.68	4.32	3.68**
BCT-IBT contrast	−6.59	3.21	2.05*
Linear rate of change after treatment
BCT	−6.92	3.27	2.11*
BCT-IBT contrast	−2.69	1.87	1.43

Note. BCT = behavioral couples therapy treatment condition; IBT = individual based treatment condition.

^*p < .05;

^*p < .01.