Sex-based differences in outcomes after severe injury: An analysis of blunt trauma patients in China

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Abstract

Background: Experimental research suggests that females have a higher survival rate after trauma, although this claim is controversial. This study sought to determine the role of sex on mortality among trauma patients in China. Methods: The study enrolled 1789 trauma patients who visited the Emergency Intensive Care Unit of the First Affiliated Hospital of Zhengzhou University during 2015 and 2016. A retrospective data analysis was performed to determine sex-based differences after blunt trauma. Patients were stratified by age and injury severity (using the Injury Severity Score). Multiple logistic regression was used to analyze the association between sex and post-injury complications and mortality. Results: Female trauma patients experienced a significantly lower risk of mortality than males (odds ratio, 0.931; 95% confidence interval, 0.883-0.982). This survival advantage of females was particularly notable in the 'younger than 45 years' age group. Sex-based differences were also found in the occurrence of life-threatening complications after trauma. Conclusion: This study demonstrated that females are more likely to survival after severe blunt trauma and also have less inpatient complications than men, suggesting an important role for sex hormones after severe traumatic injury.

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Zhu, Z., Shang, X., Qi, P., & Ma, S. (2017). Sex-based differences in outcomes after severe injury: An analysis of blunt trauma patients in China. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine, 25(1). https://doi.org/10.1186/s13049-017-0389-6

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