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Journal of Trauma-Injury Infection & Critical Care:
Original Articles

The Association between Gender and Mortality among Trauma Patients as Modified by Age

George, Richard L. MD; McGwin, Gerald Jr., MS, PhD; Metzger, Jesse MSPH; Chaudry, Irshad H. PhD; Rue, Loring W. III, MD, FACS

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Abstract

Background : Several studies have reported a null association between gender and mortality after traumatic injury, whereas others found an age-specific association between male gender and increased mortality. Relatively small sample sizes may have contributed to the heterogeneity among existing studies; therefore, a large-sample-size study was undertaken.

Methods : The National Trauma Data Bank was queried, yielding data for over 150,000 patients involved in blunt or penetrating trauma. Crude and adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were calculated for the association between gender and mortality, both overall and according to mechanism of injury and age categories.

Results : Among those who sustained blunt trauma, male patients had a significant increase in the risk of death compared with female patients (OR, 1.49; 95% CI, 1.39–1.59) that was most apparent for those ≥ 50 years of age (OR, 1.97; 95% CI, 1.84–2.11). For penetrating trauma patients, essentially no significant association, either overall (OR, 1.03; 95% CI, 0.91–1.17) or by age category, was apparent.

Conclusion : This study found an association between gender and mortality among blunt trauma patients, particularly those aged ≥ 50 years. Animal studies demonstrate that the sex hormones influence the inflammatory response to injury. These results may highlight the importance of sex hormones in traumatic injury outcomes.

© 2003 Lippincott Williams & Wilkins, Inc.

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