Table 6.

Generalized estimating equations examining substance-related problems: Parameter estimates

Source	B	SE B	95% Wald Confidence Interval		Odds Ratio	95% Confidence Interval for Odds Ratio		p
			Lower	Upper		Lower	Upper
(Intercept)	3.28	.07	3.15	3.42	26.66	23.34	30.46	<.001
Condition: LETS ACT-SE	.15	.08	−.01	.31	1.16	.99	1.37	.07
Condition: LETS ACT	.04	.09	−.14	.22	1.04	.87	1.25	.64
Condition: TAU (Ref.)	0	.	.	.	1	.	.	.
Time: FU12	−.82	.18	−1.17	−.46	.44	.31	.63	<.001
Time: FU6	−.71	.19	−1.09	−.34	.49	.34	.71	<.001
Time: FU3	−.74	.18	−1.08	−.39	.48	.34	.68	<.001
Time: FU1	−1.12	.20	−1.52	−.72	.33	.22	.49	<.001
Time: Pretreatment (Ref.)	0	.	.	.	1	.	.	.
Days in IOP	.006	.003	.000	.01	1.00	1.00	1.01	.06
Days in restricted environment	−.001	.001	−.003	.001	1.00	1.00	1.00	.21
LETS ACT-SE*FU12	−.05	.24	−.52	.42	.95	.60	1.52	.84
LETS ACT-SE*FU6	−.13	.25	−.62	.36	.88	.54	1.43	.60
LETS ACT-SE*FU3	.04	.22	−.40	.48	1.04	.67	1.62	.86
LETS ACT-SE*FU1	.35	.24	−.13	.83	1.42	.88	2.29	.15
LETS ACT-SE*Pretreatment (Ref.)	0	.	.	.	1	.	.	.
LETS ACT*FU12	.09	.25	−.39	.58	1.10	.68	1.79	.70
LETS ACT*FU6	−.08	.26	−.59	.44	.93	.56	1.55	.78
LETS ACT*FU3	−.46	.26	−.97	.06	.63	.38	1.06	.08
LETS ACT*FU1	.34	.28	−.21	.89	1.41	.81	2.43	.22
LETS ACT*Pretreatment (Ref.)	0	.	.	.	1	.	.	.

Note. LETS ACT = Life Enhancement Treatment for Substance Use; LETS ACT-SE = Life Enhancement Treatment for Substance Use, Smartphone-Enhanced Condition; TAU = Treatment as Usual; FU12 = 12 month follow-up; FU6 = 6 month follow-up; FU3 = 3 month follow-up; FU1 = 1 month follow-up; PT = Posttreatment; IOP = Intensive Outpatient Treatment