Abstract
Background
The differences in outcomes after aneurysmal subarachnoid hemorrhage (aSAH) between the sexes have not been concretely determined. This study aimed to evaluate the differences in epidemiology, outcomes, and risk factors between male and female patients with aSAH.
Methods
We performed a multicenter, retrospective study of patients with aSAH from 2017 to 2020. We investigated the epidemiological differences between the two sexes. Propensity score matching (PSM) was used to compare short-term outcomes between the sexes. Binary logarithmic regression was performed to investigate the odds ratio (OR) for dependent survival in patients of different sexes.
Results
A total of 5,407 consecutive patients with aSAH were included in this study, and the female-to-male ratio was 1.8:1. The peak incidence of aSAH occurred in the 6th and 7th decades in males and females, respectively. There were more female patients with internal carotid artery or posterior communicating artery aneurysms (53.2%), and there were more male patients with anterior cerebral artery or anterior communicating artery aneurysms (43.2%). The incidence of multiple aneurysms was greater in female patients (21.5% vs. 14.2%, P < 0.001). There was no significant difference in outcomes before and after PSM at discharge. The dependent survival risk was related only to the clinical condition on admission in women. In addition, age > 50 years (OR 1.88, 95% confidence interval 1.17–3.02; P = 0.01) and hypertension (OR 1.81, 95% confidence interval 1.25–2.61; P = 0.002) were also risk factors for male patients.
Conclusions
There were more female patients with aneurysms than male patients in this study. Most aneurysm locations were different between the two groups. There was no significant difference in discharge outcomes before and after PSM. The risk factors for dependent survival were different between female and male patients.
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Funding
This work was supported by the Tianjin Medical University General Hospital Clinical Research Program (Grant No. 22ZYYLCCG07) and the Natural Science Foundation of Tianjin, China (Grant No. 20JCZDJC00300).
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Manuscript writing: Chao Peng, Yan Zhao and Fan Li; Data collection: Chao Peng, Yan Zhao, Fan Li, Tie-zhu Guo, Xiang-dong Wang, and Bang-yue Wang; Data analysis: Chao Peng, Yan Zhao, Fan Li, Heng-rui Zhang, Yi-fan Yang, Qing-guo Liu and Xin-liang Ren; Study conception and design: Xin-yu Yang; Manuscript editing: Xin-yu Yang, Qing-guo Liu and Xin-liang Ren; Funding acquisition: Xin-yu Yang; Supervision: Xin-yu Yang. All the authors approved the final manuscript.
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This study protocol was examined and approved by the Medical Ethics Committee of Tianjin Medical University General Hospital (No. IRB2022-YX-175-01).
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Peng, C., Zhao, Y., Li, F. et al. Aneurysmal Subarachnoid Hemorrhage and Sex Differences: Analysis of Epidemiology, Outcomes, and Risk Factors. Neurocrit Care (2024). https://doi.org/10.1007/s12028-023-01929-5
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DOI: https://doi.org/10.1007/s12028-023-01929-5