Table 6.

Correlations among blast event characteristic ratings and symptom reports for all participants, those with only a history of non-blunt force TBI, and those without TBI history.

		Minimum distance	Number of events	Time since event	DRRI-2-C	PCL Total	NSI Total
Maximum wind	Alla	−.170**	.117*	−.014	.406***	.245***	.230***
	Non-Blunt TBIb	−.264*	.054	.066	.464***	.284*	.292**
	No TBIc	−.193	.046	.014	.435***	.271*	.269*
Maximum debris	Alla	−.223***	.081	−.094	.474***	.269***	.221**
	Non-Blunt TBIb	−.429***	.110	−.048	.518***	.413***	.390***
	No TBIc	−.389**	.143	−.101	.507***	.429**	.419**
Maximum ground shake	Alla	−.166**	.052	−.110	.479***	.327***	.289***
	Non-Blunt TBIb	−.367***	.193	−.143	.549***	.438***	.447***
	No TBIc	−.264	.223	−.130	.505***	.402**	.401**
Maximum pressure	Alla	−.134*	.134*	−.066	.527***	.346***	.325***
	Non-Blunt TBIb	−.410***	.100	−.098	.622***	.497***	.478***
	No TBIc	−.335*	.195	−.079	.659***	.392**	.365**
Maximum temperature	Alla	−.127*	.141*	.029	.468***	.304***	.274***
	Non-Blunt TBIb	−.276*	.173	.022	.635***	.500***	.492***
	No TBIc	−.335*	.263	−.031	.556***	.442***	.343*
Maximum sound	Alla	−.149*	.075	−.035	.414***	.353**	.317**
	Non-Blunt TBIb	−.458***	.189	−.009	.481***	.454***	.422***
	No TBIc	−.467***	.160	−.001	.588***	.434***	.413**
Minimum distance	Alla	1.00	−.027	.139*	−.148*	−.025	−.004
	Non-Blunt TBIb	1.00	−.057	−.008	−.332**	−.234*	−.276*
	No TBIc	1.00	−.126	−.028	−.195	−.200	−.246
Number of events	Alla	−.027	1.00	−.054	.074	.086	.037
	Non-Blunt TBIb	−.057	1.00	−.078	.133	.121	.105
	No TBIc	−.126	1.00	−.126	.188	.180	.183

^an = 287

^bn = 79

^cn = 54

^*p < .05

^**p < .01

^***p < .001; all p values are uncorrected; DRRI-2-C = Deployment Risk and Resiliency Inventory – 2 – Combat Exposure, PCL = PTSD Checklist, NSI = Neurobehavioral Symptom Inventory.