TABLE 2.

Change in session-by-session veteran- and partner-ratings of veterans’ posttraumatic stress disorder (PTSD) symptom severity in the full sample and treatment completer subsample

	Full sample			Treatment completers
Variable	B	SE	p	B	SE	p
Fixed effects
InterceptVeteran	44.98	1.40	< .001	43.61	2.00	< .001
InterceptPartner	34.05	1.82	< .001	32.65	2.59	< .001
TimeVeteran	0.01	0.24	.969	−0.09	0.29	.748
TimePartner	0.85	0.30	.004	0.99	0.36	.006
Time2Veteran	−0.06	0.02	< .001	−0.06	0.02	.001
Time2Partner	−0.08	0.02	< .001	−0.10	0.02	< .001
Random effects
Var (InterceptVeteran)	177.17	27.63	< .001	194.61	41.02	< .001
Var (InterceptPartner)	309.82	47.20	< .001	336.93	69.13	< .001
Var (TimeVeteran)	1.05	0.26	< .001	0.86	0.24	< .001
Var (TimePartner)	1.72	0.36	< .001	1.89	0.45	< .001
Cov (InterceptVeteran, InterceptPartner)	112.03	28.03	< .001	144.69	42.79	< .001
Cov (InterceptVeteran, TimeVeteran)	0.84	2.04	.682	1.43	2.29	.533
Cov (InterceptVeteran, TimePartner)	5.84	2.43	.016	6.39	3.19	.045
Cov (InterceptPartner, TimeVeteran)	0.76	2.54	.764	−0.64	2.90	.826
Cov (InterceptPartner, TimePartner)	−8.59	3.28	.009	−9.47	4.31	.028
Cov (TimeVeteran, TimePartner)	0.79	0.24	.001	0.75	0.26	.004
Residuals
Var (Veteran)	48.04	2.75	< .001	49.43	3.25	< .001
Var (Partner)	71.33	4.34	< .001	65.53	4.69	< .001
Cov (Veteran, Partner)	18.07	2.13	< .001	18.60	2.44	< .001
ρa	0.35	0.03	< .001	0.37	0.04	< .001

Note. Var = variance; Cov = covariance.

^aThe correlation between adjacent elements in the first-order autoregressive covariance structure specified in the model.