Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2004 Mar;35(3):633-7.
doi: 10.1161/01.STR.0000115751.45473.48. Epub 2004 Jan 29.

Active and passive smoking and the risk of subarachnoid hemorrhage: an international population-based case-control study

Craig S Anderson  1 , Valery Feigin, Derrick Bennett, Ruey-Bin Lin, Graeme Hankey, Konrad Jamrozik; Australasian Cooperative Research on Subarachnoid Hemorrhage Study (ACROSS) Group
Affiliations

Active and passive smoking and the risk of subarachnoid hemorrhage: an international population-based case-control study

Craig S Anderson et al. Stroke. 2004 Mar.

Abstract

Background and purpose: This study was undertaken to better clarify the risks associated with cigarette smoking and subarachnoid hemorrhage (SAH).

Methods: The study included 432 incident cases of SAH frequency matched to 473 community SAH-free controls to determine dose-dependent associations of active and passive smoking (at home) and smoking cessation with SAH.

Results: Compared with never smokers not exposed to passive smoking, the adjusted odds ratio for SAH among current smokers was 5.0 (95% confidence interval [CI], 3.1 to 8.1); for past smokers, 1.2 (95% CI, 0.8 to 2.0); and for passive smokers, 0.9 (95% CI, 0.6 to 1.5). Current and lifetime exposures showed a clear dose-dependent effect, and risks appeared more prominent in women and for aneurysmal SAH. Approximately 1 in 3 cases of SAH could be attributed to current smoking, but risks decline quickly after smoking cessation, even among heavy smokers.

Conclusions: A strong positive association was found between cigarette smoking and SAH, especially for aneurysmal SAH and women, which is virtually eliminated within a few years of smoking cessation. Large opportunities exist for preventing SAH through smoking avoidance and cessation programs.

PubMed Disclaimer

Substances