OBJECTIVE:: To examine the influence of self-reported preinjury coping on postinjury coping, psychosocial functioning, emotional functioning, and quality of life at 1 year following traumatic brain injury (TBI). SETTING:: Inpatient hospital and community. PARTICIPANTS:: One hundred seventy-four participants with TBI. DESIGN:: Prospective, longitudinal design. Participants were assessed at 5 time points: after emerging from posttraumatic amnesia, and at 6, 12, 24, and 36 months postinjury. MAIN MEASURES:: Coping Scale for Adults-Short Version; Quality of Life Inventory; Sydney Psychosocial Reintegration Scale; Hospital Anxiety and Depression Scale. RESULTS:: High preinjury use of nonproductive coping style predicted high use of nonproductive...