. 2015 Sep 16;41(4):1156–1165. doi: 10.1038/npp.2015.257

Table 3. Logistic Regression.

Independent variable	B	SE	Wald	p-Value	Exp(B)
dACC	3.32	1.43	5.36	0.02	27.69
CAPS total	0.05	0.03	2.69	0.10	1.06
Comorbidity	1.52	0.92	2.75	0.10	4.59
Model χ²	13.25
Nagelkerke R²	0.35
p-Value	0.004

Insula	2.12	1.19	3.15	0.08	8.29
Comorbidity	1.97	0.95	4.33	0.04	7.16
Age	−0.03	0.05	0.32	0.57	0.98
Model χ²	8.64
Nagelkerke R²	0.24
p-Value	0.04

Amygdala	3.20	1.48	4.69	0.03	24.42
Model χ²	6.43
Nagelkerke R²	0.19
p-Value	0.01

Abbreviations: CAPS, clinician administered PTSD scale (Blake et al, 1990); dACC, dorsal anterior cingulate cortex.

In accordance with ‘change in estimate strategy', only significant confounders (change in B >10%) were used in the final regression models (Greenland, 1989; Maldonado and Greenland, 1993), and are presented here.