Significant pathways between peritraumatic distress symptom cluster severity (assessed in the ED as life threat, helplessness, loss of control, and guilt/shame) and post-traumatic stress disorder symptom cluster severity (assessed at subsequent timepoints as intrusion, avoidance, and hyperarousal) and motor vehicle collision (MVC)-related axial pain severity across ED, 6 week, 6 month, and 1 year timepoints after MVC. *p < 0.05, **p<0.01