• Adriana Suárez-Cruz, Ediel O Ramos-Meléndez, Mariely Nieves-Plaza, Lourdes Guerrios, and Pablo Rodríguez-Ortiz.
• Trauma Surgery Div, Dept. of Surgery, School of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, PR, USA.
• Eur J Trauma Emerg Surg. 2022 Apr 1; 48 (2): 891-900.

PurposeAlthough trauma represents a leading cause of morbidity and mortality worldwide, there is limited and heterogeneous evidence regarding trauma recidivism and its outcomes. This analysis determined the rate and independent risk factors of trauma recidivism and compared the first and second injury episode among recidivists.MethodsAn IRB-approved retrospective cohort study was performed with data from the Puerto Rico Trauma Hospital Registry. Bivariate analyses were done using Pearson's Chi squared, Wilcoxon rank-sum, McNemar, Stuart-Maxwell or Wilcoxon signed-rank tests, as appropriate. Independent predictors for recidivism were determined through a logistic regression model. Statistical significance was set at p < 0.05.Results24,650 patients were admitted to the hospital during 2000-2017. Recidivism rate was 14 per 1,000 patients discharged alive. Males and individuals aged 15-24 years old were 3.88 (95% CI: 2.21-6.80) and 3.80 (95% CI: 2.24-6.46) times more likely to be recidivists, respectively. Contrariwise, an ISS [Formula: see text] 25 [adjusted odds ratio (AOR) = 0.44; 95% CI: 0.28-0.68] and a GCS [Formula: see text] 8 (AOR = 0.56; 95% CI 0.34-0.92) were protective factors. Furthermore, recidivists exhibited less in-hospital mortality than their non-recidivist counterparts (7.2% vs. 10.7%; p = 0.045). For recidivists, the median (interquartile range) time to reinjury was 42 (59) months; and the second injury episode was more severe than the first one, as the proportion of patients with ISS [Formula: see text] 25 increased (7.9% vs. 14.1%; p = 0.022).ConclusionThe independent predictors of trauma recidivism and the median time to reinjury identified in this study provide valuable information to the development of prevention strategies aimed at reducing the burden of injury.© 2020. The Author(s).

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