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. Author manuscript; available in PMC: 2020 Jan 1.

Published in final edited form as: Drug Alcohol Depend. 2018 Oct 29;194:230–237. doi: 10.1016/j.drugalcdep.2018.09.010

Table 2.

Longitudinal modeling of primary outcomes.

	Number of days in past 30 days
	Used alcohol B (se)	Used drugs B (se)	Psychological problems B (se)
Intercept	0.383 (0.127)^a	−0.672 (0.269)^a	2.14 (0.130)^a
Baseline value	0.073 (0.014)^a	0.078 (0.013)^a	0.021 (0.005)^a
Time (mos.)	−0.056 (0.018)^a	−0.062 (0.024)^a	−0.118 (0.053)^b
Condition
Monitoring	−0.217 (0.174)	−0.174 (0.317)	0.0003 (0.096)
Usual care	(referent)	(referent)	(referent)
Time*Condition
Monitoring	0.001 (0.024)	0.009 (0.033)	0.023 (0.040)
Usual care	(referent)	(referent)	(referent)
Fit statistics	Gen. X²/df = 1.85	Gen. X²/df = 1.64	Gen. X²/df = 1.83
Type III p-values
Baseline	<0.01	<0.01	<0.01
Time	<0.01	<0.01	<0.01
Condition	0.21	0.58	0.99
Time*Condition	0.97	0.77	0.75

^a

p<.01;

^b

p<.05

Note: Outcomes were assessed at 3-, 9-, and 15-month follow-ups.