吸烟是最重要的潜在可纠正的危险因素之一。[23]Juvela S, Porras M, Poussa K. Natural history of unruptured intracranial aneurysms: probability of and risk factors for aneurysm rupture. J Neurosurg. 2000 Sep;93(3):379-87.http://www.ncbi.nlm.nih.gov/pubmed/10969934?tool=bestpractice.com[28]Broderick JP, Viscoli CM, Brott T, et al; Hemorrhagic Stroke Project Investigators. Major risk factors for aneurysmal subarachnoid hemorrhage in the young are modifiable. Stroke. 2003 Jun;34(6):1375-81.http://www.ncbi.nlm.nih.gov/pubmed/12764233?tool=bestpractice.com[29]Feigin VL, Rinkel GJ, Lawes CM, et al. Risk factors for subarachnoid hemorrhage: an updated systematic review of epidemiological studies. Stroke. 2005 Dec;36(12):2773-80.http://www.ncbi.nlm.nih.gov/pubmed/16282541?tool=bestpractice.com[30]Juvela S. Prehemorrhage risk factors for fatal intracranial aneurysm rupture. Stroke. 2003 Aug;34(8):1852-7.http://www.ncbi.nlm.nih.gov/pubmed/12829865?tool=bestpractice.com[31]Qureshi AI, Suri MF, Yahia AM, et al. Risk factors for subarachnoid hemorrhage. Neurosurgery. 2001 Sep;49(3):607-12.http://www.ncbi.nlm.nih.gov/pubmed/11523670?tool=bestpractice.com[32]Teunissen LL, Rinkel GJ, Algra A, et al. Risk factors for subarachnoid hemorrhage: a systematic review. Stroke. 1996 Mar;27(3):544-9.https://www.ahajournals.org/doi/10.1161/01.STR.27.3.544http://www.ncbi.nlm.nih.gov/pubmed/8610327?tool=bestpractice.com 相对危险度 1.9。[8]Kassell NF, Torner JC, Haley EC Jr, et al. The International Cooperative Study on the Timing of Aneurysm Surgery. Part 1: overall management results. J Neurosurg. 1990 Jul;73(1):18-36.http://www.ncbi.nlm.nih.gov/pubmed/2191090?tool=bestpractice.com