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Background: The lack of viable organs for transplantation led to the creation in Argentina of the Glasgow 7 Program based on the detection and follow-up of acute neurologic patients admitted with Glasgow scores ≤7 in selected hospitals. The objective of this study was to determine the likelihood of hospitalized acute neurologic patients progressing to brain death (BD) based on several variables, including age, sex, and admission diagnosis., Methods: This study was a retrospective cohort analysis of data obtained from the SINTRA (Procurement and Transplantation National Information System) database between 2006 and 2015. Independent variables included the following: age, sex, and diagnosis at admission; ischemic stroke; spontaneous intracerebral hematoma (SIH); subarachnoid hemorrhage (SH); anoxia, meningitis; penetrating head injury (PHI); closed head injury; and tumors. A multivariate analysis was performed adjusting the diagnosis at admission according to age and sex., Results: A total of 31,877 patients were included: 19,308 (61%) patients died and 9736 (30%) evolved to BD. Overall, 36% of women and 28% of men evolved to BD (relative risk, 0.87 [95% confidence interval (CI), 0.86-0.89]; P < .001). In the multivariate analysis adjusted for age and sex, we observed the following: SIH OR, 1.79 (95% CI, 1.69-1.9; P < .001); ischemic stroke OR, 0.82 (95% CI, 0.73-0.92; P < .001); SH OR, 2.33 (95% CI, 2.16-2.52; P < .001); anoxia OR, 0.71 (95% CI, 0.64-0.79; P < .001); closed head injury OR, 0.41 (95% CI, 0.38-0.43; P < .001); PHI OR, 2.64 (95% CI, 2.38-2.94; P < .001); and tumors OR, 1.07 (95% CI, 0.93-1.24; P = .31)., Conclusions: Thirty percent of the patients who entered the Glasgow 7 Program evolved with BD. The characteristics most likely to result in BD were age, female sex, PHI, SH, and SIH., (Copyright © 2017 Elsevier Inc. All rights reserved.)