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Comparative Study
. 2018 Feb 27;15(3):418.
doi: 10.3390/ijerph15030418.

Impact of Sexual Dimorphism on Trauma Patterns and Clinical Outcomes of Patients with a High-Risk Score of the Osteoporosis Self-Assessment Tool for Asians: A Propensity Score-Matched Analysis

Chien-En Tang  1 , Hang-Tsung Liu  2 , Pao-Jen Kuo  3 , Yi-Chun Chen  4 , Shiun-Yuan Hsu  5 , Chih-Che Lin  6 , Ching-Hua Hsieh  7
Affiliations
Comparative Study

Impact of Sexual Dimorphism on Trauma Patterns and Clinical Outcomes of Patients with a High-Risk Score of the Osteoporosis Self-Assessment Tool for Asians: A Propensity Score-Matched Analysis

Chien-En Tang et al. Int J Environ Res Public Health. .

Abstract

The Osteoporosis Self-assessment Tool for Asians (OSTA) is a validated index based on age and weight to predict the risk of osteoporosis in women. This cross-sectional study was designed to evaluate the impact of sexual dimorphism on the trauma patterns and the clinical outcomes of patients with high-risk OSTA scores. Trauma data of patients with high-risk OSTA scores between 1 January 2009 and 31 December 2015 were retrieved from the trauma registry system of a level I trauma center. A total of 2248 patients including 1585 women and 663 men were included in this study. In-hospital mortality was assessed as the primary outcome in the propensity score-matched analyses of the female and male patients, which were created in a 1:1 ratio under the adjustment of potential confounders, including age, co-morbidity, mechanism and injury-severity score (ISS). Female patients with a high-risk OSTA score had significantly lower mortality rates than their male counterparts. Among the propensity score-matched population, female patients had lower odds of having cerebral contusion and pneumothorax, but higher odds of presenting with radial, ulnar and femoral fractures than male patients. In addition, the female patients still had significantly lower odds of mortality (odds ratio (OR), 0.5; 95% confidence interval (CI), 0.29-0.90; p = 0.019) than the male patients. However, no significant differences were noted in the length of stay (LOS) in hospital, intensive-care unit (ICU) admission, and LOS in the ICU between the sexes. Female patients with high-risk OSTA scores showed different injury patterns and significantly lower mortality rates than their male counterparts, even after controlling for potential confounding factors.

Keywords: Osteoporosis Self-Assessment Tool for Asians (OSTA); female; male; mortality; osteoporosis; outcome; trauma registry system.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
A flow chart presenting the grouping of patients with a high-risk Osteoporosis Self-assessment Tool for Asians (OSTA) score based on their sex.
Figure 2
Figure 2
Distribution of the OSTA scores in the female and male patients as well as the percentage of patients having a high-risk OSTA score.
Figure 3
Figure 3
Odds of associated illness between the propensity-score matched female and male patients with high-risk OSTA score. fx = fracture.
See this image and copyright information in PMC

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