. Author manuscript; available in PMC: 2021 Jun 1.

Published in final edited form as: Psychol Addict Behav. 2020 Feb 27;34(4):506–511. doi: 10.1037/adb0000564

Table 1.

Results of multilevel regression models predicting PTSD symptoms from lagged alcohol use and multilevel Poisson models predicting alcohol use from lagged PTSD symptoms

	PTSD Symptoms			Alcohol use
	Covariate model	Lagged predictor model	Condition interaction model	Covariate model	Lagged predictor model	Condition interaction model

	b (SE)	b (SE)	b (SE)	IRR (SE)	IRR (SE)	IRR (SE)
Session	−0.05 (0.02)^**	−0.04 (0.02)^*	−0.04 (0.02)^*	0.96 (0.02)^*	0.98 (0.02)	0.98 (0.02)
Condition	0.41 (0.16^**	0.45 (0.15^**	0.45 (0.15)^**	0.62 (0.14)^*	0.61 (0.02)^*	0.63 (0.13)^*
Session X condition	−0.07 (0.03)^**	−0.08 (0.03)^**	−0.08 (0.03)^**	–		–
Baseline level	0.67 (0.07)^***	0.65 (0.07)^***	0.65 (0.07)^***	1.78 (0.22)^***	1.74 (0.21)^***	1.73 (0.20)^***
Lagged PCL-5	–	–		–	1.22 (0.11)^*	1.08 (0.12)
Lagged alcohol use	–	0.13 (0.05)^**	0.14 (0.06)^*	–	–
Condition interaction	–	–	−0.01 (0.09)			1.32 (0.22)

Log-likelihood	−459.16	−455.05	−455.04	−443.27	−440.78	−439.24

Note.

^***

p<.001

^**

p<.01

p<.05