Table 3.

Covariate Analysis

PTSD Symptoms: CAPS-5 Scores
	B	SE B	β	p
Model 1
Intercept	28.01	2.90		<0.001
Age	−0.25	0.30	−0.16	0.413
Sex	2.74	2.74	0.18	0.325
Race	−2.39	3.06	−0.14	0.440
Model 2
Intercept	23.84	2.02		<0.001
Age	−0.33	0.23	−0.21	0.162
Sex	0.07	1.78	0.01	0.967
Race	−0.37	1.92	−0.02	0.847
HRV1	−2.88	0.94	−0.41	0.005
Condition2	−4.01	1.80	−0.26	0.034
Interaction3	−1.58	0.83	−0.21	0.069
Baseline CAPS-54	0.88	0.13	0.71	<0.001
Substance Use: TLFB Scores
	B	SE B	β	p
Model 1
Intercept	33.64	8.24		<0.001
Age	−0.74	0.87	−0.16	0.400
Sex	5.84	7.80	0.14	0.460
Race	3.91	8.71	0.08	0.657
Model 2
Intercept	34.45	9.18		<0.001
Age	0.16	1.07	0.04	0.882
Sex	5.56	8.37	0.13	0.512
Race	2.34	8.83	0.49	0.793
HRV1	6.97	4.39	0.35	0.124
Condition2	6.81	8.13	0.15	0.409
Interaction3	−1.62	3.87	−0.80	0.678
Baseline TLFB5	0.22	0.21	0.20	0.288

Note.

¹Baseline resting heart rate variability.

²Treatment condition.

³Heart rate variability multiplied by treatment condition.

⁴Clinician Administered PTSD Scale.

⁵Timeline Follow Back.