Retrospective and epidemiological studies have suggested that smoking increases the risk of developing aneurysmal subarachnoid haemorrhage (SAH). During 1990, 217 patients presenting to the Mersey Regional Neurosurgical unit with spontaneous SAH were prospectively studied. Smoking habits of patients with SAH were compared with age, sex and occupation matched controls. The relative risk of spontaneous aneurysmal SAH for smokers was twice that of non-smokers (p < 0.001). Management outcome at 6 months following aneurysmal SAH was similar for smokers and non-smokers (p = 0.43) but smokers had more postoperative pulmonary complications requiring ventilation. Significance was tested with chi-square tests.
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Donald et al. (1992) studied this question.
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