Open Access

Alcohol consumption and risk of subarachnoid hemorrhage: A meta-analysis of 14 observational studies

  • Authors:
    • Xiyang Yao
    • Kai Zhang
    • Jieyong Bian
    • Gang Chen
  • View Affiliations

  • Published online on: August 23, 2016     https://doi.org/10.3892/br.2016.743
  • Pages: 428-436
  • Copyright: © Yao et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The association between alcohol consumption and the risk of subarachnoid hemorrhage (SAH) is inconsistent. Thus, meta‑ and a dose-response analyses are presented with the purpose of assessing their associations. A systematic literature search was performed using Pubmed and Embase electronic databases for pertinent observational studies. Random‑effects or fixed‑effect models were employed to combine the estimates of the relative risks (RRs) with corresponding 95% confidence intervals (CIs). A dose‑response pattern was conducted for further analysis. The current meta‑analysis includes 14 observational studies reporting data on 483,553 individuals and 2,556 patients. The combined RRs of light alcohol consumption (<15 g/day) and moderate alcohol consumption (15‑30 g/day) compared with teetotal individuals were 1.27 (95% CI: 0.95, 1.68) and 1.33 (95% CI: 0.84, 2.09), respectively, which indicated no significant association between light‑to‑moderate alcohol consumption and SAH. An increased risk of SAH was noted in heavy alcohol consumption (>30 g/day) when compared with no alcohol consumption, as demonstrated by a result of 1.78 (95% CI: 1.46, 2.17). Dose‑response analysis showed evidence of a linear association (P=0.0125) between alcohol consumption and SAH. The risk of SAH increased by 12.1% when alcohol consumption was increased by 10 g/day. Therefore, heavy alcohol consumption was found to be associated with an increased risk of SAH. Furthermore, the association between SAH and alcohol consumption has clinical relevance with regard to risk factor modification and the primary and secondary prevention of SAH.
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October-2016
Volume 5 Issue 4

Print ISSN: 2049-9434
Online ISSN:2049-9442

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Spandidos Publications style
Yao X, Zhang K, Bian J and Chen G: Alcohol consumption and risk of subarachnoid hemorrhage: A meta-analysis of 14 observational studies. Biomed Rep 5: 428-436, 2016
APA
Yao, X., Zhang, K., Bian, J., & Chen, G. (2016). Alcohol consumption and risk of subarachnoid hemorrhage: A meta-analysis of 14 observational studies. Biomedical Reports, 5, 428-436. https://doi.org/10.3892/br.2016.743
MLA
Yao, X., Zhang, K., Bian, J., Chen, G."Alcohol consumption and risk of subarachnoid hemorrhage: A meta-analysis of 14 observational studies". Biomedical Reports 5.4 (2016): 428-436.
Chicago
Yao, X., Zhang, K., Bian, J., Chen, G."Alcohol consumption and risk of subarachnoid hemorrhage: A meta-analysis of 14 observational studies". Biomedical Reports 5, no. 4 (2016): 428-436. https://doi.org/10.3892/br.2016.743