Ellen J Mackenzie

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BACKGROUND Injured survivors of individual and mass trauma are at risk for developing post-traumatic stress disorder (PTSD). Few investigations have assessed PTSD after injury in large samples across diverse acute care hospital settings. METHOD A total of 2931 injured trauma survivors aged 18-84 who were representative of 9983 in-patients were recruited(More)
CONTEXT Previous studies have reported that the number and distribution of trauma centers are uneven across states, suggesting large differences in access to trauma center care. OBJECTIVE To estimate the proportion of US residents having access to trauma centers within 45 and 60 minutes. DESIGN AND SETTING Cross-sectional study using data from 2(More)
OBJECTIVE To assess intensive care unit (ICU)/acute care service-delivery characteristics and pre-ICU factors as predictors of posttraumatic stress disorder (PTSD) and return to usual major activity after ICU admission for trauma. METHOD Data from the National Study on the Costs and Outcomes of Trauma were used to evaluate a prospective cohort of 1906 ICU(More)
Although the etiology of chronic pain following trauma is not well understood, numerous retrospective studies have shown that a significant proportion of chronic pain patients have a history of traumatic injury. The present analysis examines the prevalence and early predictors of chronic pain in a cohort of prospectively followed severe lower extremity(More)
CONTEXT Few large-scale, multisite investigations have assessed the development of posttraumatic stress disorder (PTSD) symptoms and health outcomes across the spectrum of patients with mild, moderate, and severe traumatic brain injury (TBI). OBJECTIVES To understand the risk of developing PTSD symptoms and to assess the impact of PTSD on the development(More)
BACKGROUND Trauma registries (TRs) play an integral role in the assessment of trauma care quality. TRs are still uncommon in developing countries owing to awareness and cost. We present a case study of development and pilot implementation of "Karachi Trauma Registry" (KITR), using existing medical records at a tertiary-care hospital of Karachi, Pakistan to(More)
Previous studies have shown that pain, depression, and anxiety are common after trauma. A longitudinal relationship between depression, anxiety, and chronic pain has been hypothesized. Severe lower extremity trauma patients (n = 545) were followed at 3, 6, 12, and 24 months after injury using a visual analog "present pain intensity" scale and the depression(More)
As part of a larger longitudinal study, the current analyses characterize the relationship among pain, psychological distress, and physical function after major lower extremity trauma. Structural equation modeling techniques were utilized to analyze data from a prospective 2-year observational study of 327 patients treated at 8 level I trauma centers. Data(More)
BACKGROUND Variation in referral rates for physical therapy exists at both the individual physician and practice levels. OBJECTIVE The purpose of this study was to explore the influence of physician and practice characteristics on referral for physical therapy in patients with traumatic lower-extremity injury. DESIGN A cross-sectional survey was(More)
Despite the growing number of older adults experiencing traumatic brain injury (TBI), little information exists regarding their utilization and cost of health care services. Identifying patterns in the type of care received and determining their costs is an important first step toward understanding the return on investment and potential areas for(More)