Table 2.

Results of multivariable binary logistic regression model predicting incident PTSD over the 7-year study period (Nagelkerke R²=0.32)

	Wald χ2	p	RRR (95%CI)
Age	6.44	0.11	0.98 (0.96-0.99)*
Male gender	1.50	0.22	1.48 (0.79-2.76)
Caucasian race/ethnicity	3.50	0.061	0.64 (0.41-1.02)
Some college or higher education	1.13	0.29	1.31 (0.80-2.14)
Married/partnered	0.01	0.97	0.99 (0.62-1.58)
Retired	2.96	0.085	0.58 (0.32-1.08)
Marine Corps vs. Other Branch	0.33	0.56	1.19 (0.66-2.16)
Combat veteran	0.23	0.63	0.89 (0.56-1.42)
VA is primary source of health care	9.93	0.002	2.11 (1.33-3.36)**
Number of traumas at Wave 1	0.32	0.57	0.97 (0.89-1.06)
Traumas since Wave 1	77.19	<0.001	1.82 (1.59-2.08)***
Lifetime MDD	5.44	0.020	1.83 (1.10-3.05)*
Lifetime AUD or DUD	1.34	0.25	1.32 (0.82-2.13)
Poor/fair sleep quality	4.52	0.034	1.60 (1.04-2.47)*

Note. RRR=relative risk ratio; 95%CI=95% confidence interval; MDD=major depressive disorder; AUD=alcohol use disorder; DUD=drug use disorder.

Significant association:

^*p<0.05;

^**p<0.01;

^***p<0.001