Table 3.

Fixed Effects of Treatment Session and SUD Group as Predictors of Substance Use and PTSD Severity

Estimate	B	SE	p	B	SE	p
Substance Use	Continuous			Categorical
Intercept/Threshold	37.61	5.00	<0.001	−2.19	1.15	0.057
Session	−1.46	0.25	<0.001	−0.24	0.06	<0.001
SUD Group	4.06	5.00	0.417	−0.5	1.06	0.64
Session x SUD Group	−0.55	0.25	0.029	−0.02	0.06	0.789
PTSD Severity	B	SE	p
Intercept/Threshold	58.55	2.10	<0.001
Session	−1.62	0.14	<0.001
SUD Group	0.37	2.10	0.86
Session x SUD Group	0.58	0.14	<0.001

Note: SUD = substance use disorder; PTSD = posttraumatic stress disorder; PCL-M = PTSD Checklist – Military Version;

^*p < 0.05.